– 0.3+ – 0.8×0.5–0.1 using PEMDAS

Answers

Answer 1

Answer:

-0.8

Step-by-step explanation:

=0.3-0.8*0.5-0.1

= -0.3-0.4-0.1

= -0.7-0.1

= -0.8


Related Questions

. Calculate the circumference of a circle with a radius of 15 inches. Use 3.14 for pi.
Round answer to the nearest tenth, if necessary.

Answers

Answer: 94.2

Step-by-step explanation:

C = 2 πr

C = 2 x 3.14 x 15

C = 30 * 3.14

C = 94.2

On the axes below, make an appropriate scale and graph exactly one cycle of the trigonometric function y=16sin 1/2 x

Answers

For the given trigonometric function y =16sin1/2 x the graph shows the amplitude of 16 ,  graph of exactly one cycle is with period 4π , with no vertical and phase shift.

As given in the question,

Given trigonometric function :

y = 16sin 1/2 x

Attached graph of the given trigonometric function with

Amplitude = 16

Period = 4π

Vertical shift = None

Phase shift = none

Table for the required trigonometric function values which represent appropriate scale and graph exactly one cycle of the trigonometric function

x : 0        π        2π          3π         4π

y :  0       16        0            -16         0

Therefore,  graph of trigonometric function y =16sin1/2 x shows the amplitude of 16 ,  graph of exactly one cycle is with period 4π , with no vertical and phase shift.

Learn more about trigonometric function here

brainly.com/question/14746686

#SPJ1

THIS IS EASY!!!!!!!!!!!!!!!

In ΔFGH, the measure of ∠H=90°, GF = 29, FH = 20, and HG = 21. What is the value of the sine of ∠F to the nearest hundredth?

Answers

The value of the sine of ∠F to the nearest hundredth is 0.72

Sine rule

A triangle is a figure that has 3 sides and angles. Given the following parameters;

∠H=90°

GF = 29

FH = 20

HG = 21.

Using the SOH CAH TOA identity;

sin theta = opposite/hypotenuse

sin ∠F = HG/GF

Substitute the given parameters

sin ∠F= 21/29

sin ∠F = 0.72

This gives the required value of sin ∠F to the nearest hundredth

Learn more on trigonometry identity here: https://brainly.com/question/24496175

#SPJ1

Rewrite in simplest terms: −4(8f+g)+9g−5(−2g+6f)

Answers

distribute
-32f - 4g + 9g + 10g - 30f

simplify
-62f + 15g

1 - 3x = 3x + 1
what does x equal?

Answers

Answer:

the value of x is -6

Step-by-step explanation:

1-3x= 3x+1

-3x -3x =1-1

-6x=0

-x=6

x= -6

Write the equation of the line whose slope is -6 and y intercept is (0, -2)

Answers

Answer: y = -6x-2

Step-by-step explanation:

y=mx+b

-2=(-6)(0)+b

b= -2

y=-6x - 2

y = -6x - 2

Slope is -6x while y-int is -2

One of your friends is working on their math homework. They decide to translate the phrase "subtract 3 from 5" like this:

3-5

Which statements below give a reason why your friend's expression is incorrect?
Select ALL that apply.



A.The expression is written with the wrong operation.

B.in subtraction, order matters and the expression in the incorrect order.

C.the expression should be written as an addition expression with the 5 being added to the 3

D. The expression was written in the order from the phrase which is incorrect

Answers

Answer:

B

Step-by-step explanation:

When you are taking 3 away from 5 it would be 5-3, when you are taking 5 away from 3 it would be 3-5, but in this case it is not so the answer would be B as the order is incorrect.

The value for x that makes the equation 4×-2+3×-7=51 true

Answers

The value of x that makes the equation true is 60/7.

The given equation is:-

4x - 2 + 3x - 7 = 51

The given equation is a linear equation in one variable.

Linear equation in one variable

A linear equation in one variable is of the form of ax + b = 0, where a and b are any two integers and x is an unknown variable having only one solution. Example : 5x + 3 = 10.

We have to find the value of x that makes the equation true.

Simplifying the given equation, we get

(4x + 3x) - (2 + 7) = 51

7x - 9 = 51

7x = 51 + 9

7x = 60

x = 60/7

To learn more about linear equation in one variable, here:-

https://brainly.com/question/17139602

#SPJ1

Is the function linear? (actual answers please, i know someone could easily say yes or no)

Answers

Yes because linear is straight line ‍

Answer:

Obviously yes...

Step-by-step explanation:

Because there is not a single curve, hence the fn is linear.
Had it been if there are some curves, it may result in having more than one zeroes...
Cuz there's no curve it has only one zero, which made the fn linear..
Thanks.

Which diagram shows parallel lines cut by a transversal?

Answers

option c
the lines is cut by one common line

Please answer the question in the photo

Answers

Answer: 8

Step-by-step explanation:

180 degrees in a triangle, so 180 - 92 - 48 = 40

So, the missing angle is 40, which is equal to 5t, so

40 = 5t

t = 8

In Exercises 7-10, determine whether the table represents a linear or nonlinear function. Explain. (See Exam
8.
7.
X
X
y
4
y 16.8
1
5
2
12.6
10
8 12
7.4
3
15
16
1.2
4
20
10.
x 5
y
-9
X
y
-1
35
7
-3
9
-1
11
3
0
1
2
20 5 -10 pls help me

Answers

Answer:

every number has a correlating value

Step-by-step explanation:

can some one help i will give 100 points and brainliest can you show your work step by step?

Answers

Answer: in pictures

MODELING REAL LIFE You can use at most 5 gigabytes of data per month on your cell phone. Your data usage so far for the month is 1.24 gigabytes. What are the possible amounts of data you can use for the remainder of the month?

Answers

Answer:3.76 gigabytes

Step-by-step explanation:

You subtract the 5.00 by the 1.24

1. how do we change a similar fraction?
2. how do we add the similar fraction?

Answers

Answer:

You add similar  fraction by adding the numerators together but since the denominators are the same u keep them as they are

1. Similar fractions are those which have the same denominator. To change dissimilar fraction to similar fractions, you express them as a equivalent with a common denominator. For example 2/12, 3/12

2. To add similar fraction one should ensure that both the numerator are same and then add the numerator and put that on the denominator. If there is need to simply the fraction then you should first simplify the fraction.

For example:- 1/4+4/4= 5/4

Here as we see that bot number denominator are same so it's addition is done easily

Find the volume of this solid.

Answers

Answer:

128m²

Step-by-step explanation:

separate the two solids.The cube and the cuboid

find the volume of the cube i.e.5³=115m²

find the volume of the cuboid i.e 1×1×3=3m²

add the two volumes

Answer:

128m²

Explanation:

Add all volumes, 5+5+4+6+3, then times that by the volume below.

What is the best estimate of 31 3/4 X 4 1/7 = ? Help Me?!!​

Answers

The best estimate of fraction is 131.445.

What is fractions?

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator. A fraction is a number that is a component of a whole. By breaking a whole into a number of parts, it is evaluated. For instance, the symbol for half of a complete number or item is [tex]\frac{1}{2}[/tex]

Given Data

31[tex]\frac{3}{4}[/tex] × 4[tex]\frac{1}{7}[/tex]

Solving mixed fractions

[tex]\frac{127}{4}[/tex] × [tex]\frac{29}{7}[/tex]

31.75 × 4.14

Multiplying

131.445

The best estimate of fraction is 131.445.

To learn more about fractions, visit:

https://brainly.com/question/10354322

#SPJ9

Which of the following is NOT equivalent to the formula d=rt? The options are in the picture.

Answers

Given

Which of the following is NOT equivalent to the formula d=rt?

Procedure

A. d/r=t is equivalent d=rt

B. r=dt is not equivalent

C. d/t=r is equivalent d=rt

D. d/rt=1 is equivalent d=rt

The answer is option B. r=dt that is NOT equivalent to the formula d=rt

Which graph represents the function f(x)=√x+4-2?​

Answers

Answer:

the top right graph

Step-by-step explanation:

I assume you mean the function is

f(x) = sqrt(x + 4) - 2

because for your function as you wrote it

f(x) = sqrt(x) + 4 - 2 = sqrt(x) + 2

none of the graphs apply.

to find the correct one we look at some specific points.

like x = 0, and when the square root will be 0 (x = -4).

normally we can see the right graph latest here already, but if not, then we have to pick a few more points.

so,

for x = 0 we get

sqrt(0 + 4) - 2 = 2 - 2 = 0

that means

f(0) = 0

now, when we look at the graphs, we see we are already finished. there is only one graph that goes through (0, 0).

the top right graph.

need help on this question

Answers

The coordinates of the vertex B' is (2,3)

Given,

The vertices of triangle ABC are

A = (-4,4)

B = (-2,3)

C = (-5,2)

and, reflected across the y-axis to produce the image of triangle A'B'C'

To find the coordinate of the vertex B'

Now, According to the question

For reflection across y-axis, the rule is:

(x, y) → (-x, y)

So, the image of B is:

(-2, 3) → (-(-2), 3)

(-2,3) → (2, 3)

Hence, The coordinates of the vertex B' is (2,3)

Learn more about Reflection y-axis at:

https://brainly.com/question/23393086

#SPJ1

Estimate the quotient of 41 ÷ 7.94.

4
5
6
7

Answers

8x5 equals 40 so 5 should be your best estimate

The graph shows the velocity f(t) of a runner during a certain time interval:

Graph of line segment going through ordered pairs 0, 4 and 4, 8. Graph of another line segment going through ordered pairs 4, 8 and 8, 0. Label on the x axis is time in seconds, and label on the y axis is velocity in meters per second.

Which of the following describes the intercepts on the graph?

The initial velocity of the runner was 4 m/s, and the runner stopped after 8 seconds.
The initial velocity of the runner was 8 m/s, and the runner stopped after 4 seconds.
The initial acceleration of the runner was 4 m/s2, and the runner stopped after 8 seconds.
The initial acceleration of the runner was 8 m/s2, and the runner stopped after 4 second

Answers

The description of the intercepts of the Graph segments passing through the points (0, 4), (4, 8), (4, 8) and (8, 0) is given by the option;

The initial velocity of the runner was 4 m/s and the runner stopped after 8 seconds

What is a velocity time graph?

A velocity time graph is a graph that shows how the velocity of an object changes with time

The given information on the graph are;

The coordinates of the points on the Graph of the first line segment = (0, 4) and (4, 8)

On Graph of the second line segment, the coordinates of the points = (4, 8), (8, 0)

The label of the axis of the graph are;

X–axis label = Time in seconds (s)

Y–axis label = Velocity in m/s

Required; The option that gives the description of the intercepts of the graph

Solution; The x and y–intercept are given as follows;

At the x–intercept the y–value is 0, which gives the x–intercept of the graph as the point (8, 0)

Given that the y–value which is the value of the velocity, is 0, it means that the runner stops at the point (8, 0), or after 8 seconds

At the y–intercept, the x–value is 0. The y–intercept is therefore the point (0, 4)

The 0 in the y–intercept means that the time is 0 seconds, which is the starting or initial time, while the 4 means that the velocity is 4 m/s.

Therefore, the y–intercept (0, 4) can be described as the initial velocity of the runner is 4 m/s

The description of the intercepts on the graph are therefore;

The initial velocity of the runner was 4 m/s and the runner stopped after 8 seconds.

Learn more about velocity time graphs here:

https://brainly.com/question/10824584

#SPJ1

Answer:

The initial velocity of the runner was 4 m/s, and the runner stopped after 4 seconds and then again after 8 seconds. Option A is the correct answer

Step-by-step explanation:

The intercepts on the graph can be described as follows:- The y-intercept is the point at which the line intersects the y-axis, and it represents the initial velocity of the runner. In this case, the y-intercept is at (0, 4), which means that the initial velocity of the runner was 4 m/s.- The x-intercept is the point at which the line intersects the x-axis, and it represents the time at which the runner stopped. In this case, there are two x-intercepts: one at (4, 8) and another at (8, 0).
This means that the runner stopped twice, once after 4 seconds and again after 8 seconds.

Therefore, the correct description of the intercepts on the graph is: The initial velocity of the runner was 4 m/s, and the runner stopped after 4 seconds and then again after 8 seconds. Option A is the correct answer.

The three inside angles (A, B and C) of a right-angled triangle are in the ratio 7/18 / 11 The smallest angle is 35 deg Work out angles A, B and C. ​

Answers

A polygon with the three edges and three vertices is called a triangle. It is one of fundamental geometric shapes. The symbol for a triangle containing the vertices A, B, and C is ABC, measures of the right triangles are 35, 90 and 55.

What is a triangle?

A polygon with the three edges and three vertices is called a triangle. It is one of fundamental geometric shapes. The symbol for a triangle containing the vertices A, B, and C is ABC.

In Euclidean geometry, any three points that are not collinear produce a singular triangle and a singular plane (i.e. a two-dimensional Euclidean space). In other words, every triangle is contained in a plane, and there is only one plane that contains that triangle. All the triangles are enclosed in a single plane if all of geometry is the Euclidean plane, however this is no longer true in higher-dimensional Euclidean spaces. Except when otherwise specified, this article discusses the triangles in Euclidean geometry, namely the Euclidean plane.

Which is the smallest angle, which is the right angle, and which is the third angle of the triangle are the three inner angles (A, B, C) of a right angled triangle.

sum of the interior angles of a triangle = 180

ratio 7:18:11

so

7+18+11 = 36

180 / 36 = 5

7 x 5 = 35

18 x 5 = 90

11 x 5 = 55

measures of the right triangles are 35, 90 and 55

To know more about angles visit: https://brainly.com/question/28451077

#SPJ9

What is the equation for the line that passes through the coordinates (-4,-12)and(16,3)

Answers

The equation of the line that passes through these coordinates is 3x-4y= 36

How to calculate slope?

If you have the coordinates of two points on a line, you can use the slope formula to determine that line's slope. m=(y2-y1)/(x2-x1), or the ratio of the change in the y values to the change in the x values, is the slope formula.

To find the equation of the line we first have to find the slope which is represented by m.

The slope or m is given by : y₂ - y₁ / x₂ - x₁

thus, m= 3-(-12)/ 16-(-4)

m= 3+12/ 16+4 = 15/20

m= 3/4

The equation of a slope is y-y₁=m (x-x₁)

y- (-12) = 3/4 (x- (-4))

y+12 = 3/4 (x+4)

On solving it further we get:

4y+48= 3x+12

3x-4y= 36

To know more about slopes visit:

https://brainly.com/question/13496015

#SPJ10

Create an equivalent expression for 17^-7 • 17^5.

Answers

Answer:

Answer is in fraction.--> 1/289.

Step-by-step explanation:

[tex]17^{-7} =17^{-7+5}=17^{-2} =\frac{1}{17^{2} } = \frac{1}{289}[/tex]

#2 The number of bacteria in a refrigerated food is given by N(T)=20T2-20T+120 for -2T14 Tand where T is the temperature of the food in Celsius.
(a)Explain the meaning of -2T14 in this context
(b)Determine the temperature the number of bacteria will be minimal?
(c)Find number of bacteria in a above
(d) Sketch a graph

Answers

From the given quadratic function, it is found that:

a) The interval -2 ≤ T ≤ 14 gives the range of the temperature of the food in Celsius.

b) The number of bacteria will be minimal for a temperature of 0.5 ºC.

c) The minimum number of bacteria is of 115.

d) The graph that models the situation is sketched at the end of the answer.

What does the quadratic function models in this problem?

The quadratic function is given as follows:

N(T) = 20T² - 20T + 120, -2 ≤ T ≤ 14.

In which:

T is the temperature in Celsius of the food.N(T) is the number of bacteria in the food.

The function has a domain of -2 ≤ T ≤ 14, meaning that these are the possible temperatures of the food.

For a concave up quadratic function, the minimum value happens when the input is of:

Tm = -b/2a.

For this problem, the coefficients of the quadratic function are as follows:

b = -20, a = 20.

Hence the temperature in which the number of bacteria will be minimal is of:

Tm = 20/40 = 0.5 ºC.

The number of bacteria with this temperature is given by the numeric value of the function when T = 0.5, that is, each instance of T in the function is replaced by 0.5, hence:

N(0.5) = 20(0.5)² - 20(0.5) + 120 = 115 bacteria.

More can be learned about quadratic functions at https://brainly.com/question/24737967

#SPJ1

$10,000 for 5 years at 4% interest

Answers

Simple interest earned on the principal amount $10,000 for 5 years at 4% interest per year will be $12,000.

As given in the question,

Simple Interest:

The simple interest is an amount that is paid for loan or borrowed money over a certain period at a fixed percentage of borrowed money.

Principal amount:

Principal amount is the money that is taken as loan or borrowed.

Formula of Simple Interest:

Simple interest = Principal amount × Rate × Time

Since,

Principal amount = $10,000

Rate = 4% per year

Time = 5 years

Then,

Simple interest = 10,000 × 4 × 5

Simple interest = $ 12000

Total value after 5 years = $ 12000

Principal amount = $ 10000

Interest Earned = (Total value) - (Principal amount)

Interest Earned = $ 12000 - $ 10000

Interest Earned = $ 2000

Therefore, simple interest earned on the principal amount $10,000 for 5 years at 4% interest per year will be $12,000.

The complete question is:

Fabian is taking out a loan in the amount of $10,000. His choices for the loan are a 5-year loan at 4% rate of interest .What is the amount of simple interest and interest earned Fabian would have to pay?

To know more about simple interest here

https://brainly.com/question/25845758

#SPJ1

Your sister has 560 and you
have $120. Your sister is
saving $7 per week and you
are saving $5 per week
How many weeks wild be
until you and your anter
have the same amount of
money? Write an equation
and solve

Answers

Answer:

After 30 weeks me and my sister will have same amount of money

Step-by-step explanation:

let the week be x

then

60+7x = 120+5x

2x=60

x=30

Select all the equations where x = -2 is a solution.
(Select all that apply.)
a. 3x - 5 = 1
b. 19 = 2(x-6)+3
c. 5 + 3x = -1
d. 2(x+5)=x+8
e. 4x = 4 + 2x​

Answers

the leters c and d are correct for this equation

Why can it help to line up the decimal
points before comparing and ordering
numbers with decimals?

Answers

Answer: Why it makes sense: When we compare or order decimals we need to compare place values just like we do with whole numbers. When the edges are “jagged” it makes it harder to compare each decimal place. Adding a zero in an empty place value makes it easier to compare the numbers.

Step-by-step explanation:

Answer:

you need to line them up to tell what place value each are in. if u don't the you won't known exactly what the product is equivalent to.

Other Questions
PLEASE HELP ME I NEED THIS ASAPInvestigating Energy SystemsHarnessing Human Energy Chapter 1 Lesson 1.2Reasoning ToolPossible subclaims:The Battery System does have energy.orThe Battery System does not have energy.The Hand-Crank Generator System does have energy.orThe Hand-Crank Generator System does not have energy.The Solar Cell System does have energy.orThe Solar Cell System does not have energy.Evidence(observations about whether the system does or does not have energy)This matters because . . .(How does this evidence support the subclaim?)Therefore, . . .(subclaim) the nurse is providing discharge instructions for a slightly overweight client seen in the emergency department with gastroesophageal reflux disease (gerd). the nurse notes in the client's record that the client is taking carbidopa/levodopa. which order for the client by the health care provider should the nurse question? Which of these is an example of good parallelism in a formal outline?O A. All entries following capital letters are proper nouns.OB. Book titles are all connected using parallel lines.OC. Main ideas are placed in the left-hand column parallel to theirsupporting ideas.OD. Supporting ideas are given a dash instead of a bullet. According to Confucianism, what is the best way to create an orderly society?Select one:a.An orderly society is created through a powerful army.b.An orderly society comes about by abandoning empty rituals and embracing love for one's family.c.An orderly society is created when those in superior positions act in a worthy and wise way and those in lower position are therefore motivated to obedience,d.An orderly society comes about by the creation of equality among all people. What forward force must the ground apply to the foot of a 60.0kg person to result in an acceleration of 1.00 m/s^2? if you gently shake a separatory funnel containing a carboxylic acid with chloroform and aq nahco3, the organic acid will be found where? (multiple answers possible) How did the geography of New England affect how people there made a living?Limited farmland and a short growing season encouraged colonists to turn to fishing and shipbuilding.Limited waterways and poor access to the ocean encouraged colonists to turn to fur trapping and trading.Abundant farmland and a long growing season encouraged colonists to grow cash crops.Abundant farmland and a short growing season encouraged colonists to grow grains. I'm stuck and in need of help. I need help with this. Which of the following were part of the terms of the Treaty of Ghent?- Britain agreed to recognize the original borders of the United States from before the war.- Britain withdrew its insistence on a Native-American-controlled buffer zone along the U.S.--Canada border.- Britain was permitted to retain a military presence at the forts it had seized during the war.- The United States agreed to return the lands it had forced the Creeks to cede. Hey, could anybody help me with this? thank you! OLines a and b are parallel Line c is perpendicular to both line a and line b. Whichstatement about lines a, b, and c is NOT always true?The sum of the slopes of line b and line c is 0.The product of the slopes of line a and line c is -1.Ja9EGLine a and line b have the same slope.The product of the slopes of line c and line b is -1. calculate a 95% confidence interval for a sample mean of 20 with a sample standard deviation of 10 and a sample size of 9. the answer should be accurate to the nearest decimal. given t Rope A is 25 times as long as Rope B and RopeB is 18 times as long as Rope C. If Rope A is3,600 cm long, how long is Rope C? SOMEONE HELP PLEASEa clothing business finds there is a linear relationship between the number of shirts, n, it can sell and the price, p, it can charge per shirt. In particular, historical data shows that 6000 shirts can be sold at a price of $81, while 10,000 shirts can be sold at a price of $45. Give a linear equation in the form p = mn + b that gives the price p they can change charge for n shirts. Answer: p = ____ Musical Genius: Is It Talent, or Is It Practice?by Marcia Amidon Lusted1 So your mom made both you and your brother take piano lessons. After just a few months, your brother is playing really hard pieces of music. You, on the other hand, cant seem to get out of the beginner music book. You decide that your brother just has musical talent and you dont, and that no matter how hard you practice, youll never be as good as he is. But is that really true? Or are you just looking for an excuse to stop playing the piano?2 This is an argument that musicians and scientists love to revisit: Is musical ability an innate talent, or is it just the result of practice and determination? When someone is very good at a given thing, what is it that actually makes him good? asks Dr. K. Anders Ericsson, a psychology professor at Florida State University. Ericsson led a group of researchers in one of the most important studies about talent versus practice. Ericsson believes that two people can have the same ability to do something, such as play the piano, but the one who can engage in something called deliberate practice will be the one who becomes the most proficient.3 Deliberate practice isnt just logging in so many hours of practice time, but involves setting specific goals of skills the person needs to work on, getting immediate feedback, and concentrating on technique. Ericsson and his colleagues published a 900-page book called the Cambridge Handbook of Expertise and Expert Performance, in which they say that talent is overrated. They write that expert performers are made through practice and hard work, not simply born with amazing talent. They also suggest that if people pursue something that they love, they are more likely to work hard at it and be successful. Many people avoid doing things that they dont think theyre good at. They give up and tell themselves that they just dont have the talent. Instead, what they really dont have is the desire to be really good and the dedication to regularly practice to reach their goal.4 A lot of people believe there are some inherent limits they were born with, Ericsson says. But there is surprisingly little hard evidence that anyone could attain any kind of exceptional performance without spending a lot of time perfecting it.5 In his 2008 book Outliers, author Malcolm Gladwell summed up Ericssons work and repeatedly stated that anyone could become proficient and successful in his or her fieldincluding musicif they practiced for 10,000 hours, which he called the 10,000 Hour Rule. He writes that practice isnt the thing you do once youre good, but rather, the thing you do that makes you good. Even for those people who seem to have talent to start with, this amount of practice can make the difference between being average and being elite.6 Many scientists are questioning the entire idea of talent, calling it a myth. Folk psychologythe beliefs that people have about human behavior, usually handed down over generations as well as coming from individual experienceteaches us that talents are present at birth and only certain people are born with these special abilities. But scientists have studied successful musicians and found that many of them did not show any particular signs of talent at a very early age. Those who did were usually a part of a household where a parent was musical or encouraged musical activities. A child might show interest in music, and the parent then provides the musical training that helps the child become a good musician.How does the author develop the claim that practice is important to musical ability?by describing personal experiencesby discussing the opinions of professional musiciansby providing details about a psychology professor's researchby introducing the concept of working memory capacity I need help with this practice problem solving, having trouble.It is trigonometry. In the first reaction of the citric acid cycle, oxaloacetate, which contains blank______ carbons, is combined with acetyl-coa, which contains blank______ carbons in its acetyl group, to produce citric acid, which contains blank______ carbons. Janelys has a points card for a movie theater. She receives 20 rewards points just for signing up. She earns 12.5 points for each visit to the movie theater. She needs at least 165 points for a free movie ticket. Ali and mohammad are playing football. Ali's score is twice the difference of muhammad's score and 6. the sum of their scores is 420. write and solve to find each student's football score