Mathematics High School

simplify and solve




a x= -16
b x = -10
c x=10
d=16​

Simplify And Solvea X= -16 B X = -10c X=10d=16

Answers

Answer 1
1/2 (-4x + 12)= 26

-4x + 12= 52

-4x = 52 - 12

-4x = 40

x= 40/-4

x= -10

The answer is B. x = -10

Related Questions

A student runs 100 meters in 11 seconds. What is the speed of the student in miles?

Answers

Answer:

0.00565 miles / second

Step-by-step explanation:

1 mile = 1609.344 meters

100 meters = 100/1609.344 = 0.0621 miles    (aprox)

100 meter/ 11 seconds = 0.0621miles / 11 seconds

= 0.00565 miles / second

Solve for the length of BC

Answers

Answer:

BC= 9cm

Step-by-step explanation:

You'll need to use the Pythagorean theorem:

a^2 + b^2 = c^2

12^2 + b^2 = 15^2

The slanted side of the triangle is always going to be 'c' because it is the longest side of the triangle.

Now simplify:   144 + b^2 = 225

I got these numbers because 12^2= 144 and 15^2= 225

Subtract.   225 - 144 = 81

Now find the square root of 81. The answer is 9.

The ratio of white cars in the parking lot to
black cars is is 5 to 7. The number of white
cars is 24 less than the number of black cary
How many black cars are there?

Answers

Answer:84

Step-by-step explanation:

you multiply each side by 12. That gets you 60 white cars and 84 black cars. 60 is 24 less than 85

The musical theme was first introduced by the

Answers

Answer:

entire orchestra I'm gonna say

A bag holds 12 red marbles, 11 green
marbles, 17 blue marbles, and 5 yellow
marbles. What is the probability that
you will NOT choose a blue marble?
5
A
45
(В)
11
45
12
© 45
28
45

Answers

Answer:

62.22%

Step-by-step explanation:

First, find how many total marbles there are:

12 + 11 + 17 + 5

= 45

Then, find how many marbles that are not blue:

12 + 11 + 5

= 28

Then, divide 28 by 45, and multiply by 100

(28/45) x 100

= 62.22% is the probability of not choosing a blue marble

Y/T = 28/45 = 62%
Y=yes
T=total

HELP ME!!! THIS IS THE LAST QUESTION ON MY HOMEWORK

Answers

I hope this helped. You just needed to divide it by 2

2x=y=6
X+2y=-2
Solving system of equations

Answers

im assuming you meant 2x + y = 6 instead of 2x = y = 6

answer:
x = 14/3
y = -10/3

step by step explanation:
2x + y = 6
x + 2y = -2
solve for y in the first equation
y = 6 - 2x
plug y into the second equation
x + 2(6 - 2x) = -2
-3x + 12 = -2
-3x = -14
x = 14/3
plug into the y equation
y = 6 - 2(14/3)
y = -10/3

The temperature at 3:00 pm is 27 degrees. The temperature drops 4 degrees every hour for 8 hours. What is the temperature at 11:00 pm?

Answers

–5 degrees i know because my brother just answered this and got it right

Max is thinking of a number, which he calls n. He adds 8 and then doubles the sum.
• Write an expression to represent Max's number.

Answers

Answer:

2(n+8)

sum is 30

Step-by-step explanation:

Answer:

2(n+8)

Step-by-step explanation: taking quiz right now

how do i graph negative square roots on a number line​

Answers

Answer:

see below

Step-by-step explanation:

On the real number line you can't

to graph them you have to make a Cartesian plane

with x= the real numbers

and y= the imaginary numbers

Write the Linear Equation in Point-Slope Form for a line that has a slope of
-10 and passes through the point (8,2). *

Answers

Answer:

y = -10x + 82

Step-by-step explanation:

Plug in the slope and point into y = mx + b to solve for b:

y = mx + b

2 = -10(8) + b

2 = -80 + b

82 = b

Then, plug b and the slope into y = mx + b

y = -10x + 82 is the equation in point slope form.

Need help with this problem

Answers

Answer:

Step-by-step explanation:

2x + 1 + x + 23 = 180

3x + 24 = 180

3x = 156

x = 52

2(52) + 1 = 104 + 1 = 105

52 + 23 = 75

Can someone answer fast?

Which of the following rules describes the function graphed below?

I have no idea how to do this

Answers

Answer:

I would say c im not 100% sure sorry if i got it wrong

Step-by-step explanation:

Someone please help me out with this question ASAP thank u

Answers

Answer:

Yes, it is AC.

Explanation:

There’s no other way of naming it.

The other way for ca is ac

simplify 12-15÷3-3 pwease

Answers

Answer: -6

Step-by-step explanation: mark me as brainliest if i helped

The value of the expression is 4.

We have,

Expression:

12 - 15 ÷ 3 - 3

Now,

Apply PEMDAS.

Divide 15 by 3.

12 - 15/3 - 3

[ 3 x 5 = 15]

So,

12 - 5 - 3

12 - (5 + 3)

12 - 8

4

Thus,

The value of the expression is 4.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ6

Evaluate the expression when a=3.
a^2+12

Answers

[tex]3^{2} + 12 = 9 + 12 = 21[/tex]

The answer is 21.

Answer:

The correct answer is 21.

Step-by-step explanation:

To solve this problem, we simply substitute 3 for a in the expression.

Given the expression,

a^2 + 12

we should replace "a" with 3, as denoted by the problem, giving us:

(3)^2 + 12

Now, we simplify using the order of operations.  PEMDAS tells us that we should simplify what is in the parentheses first because it has an exponent.

9 + 12

Now, we can just add the two remaining terms together, giving us:

21

Therefore, the answer is 21.

Hope this helps!

1. M=? J=? K=?

2. N=?

3. ( did not know how to crop, please ignore this question! )
Thank you so much!

Answers

Answer:

See Explanation

Step-by-step explanation:

m = 46° (vertical angles)

j = 92° (vertical angles)

j + k + 46° = 180° (staright line angles)

92° + k + 46° = 180°

138° + k = 180°

k = 180° - 138°

k = 42°

n = 37° + 44° = 81°

Tanya is 6 times younger than her great-grandfather. If a zero is placed between the digits of her age, it will read as the age of her great-grandfather. How old is Tanya?

Answers

Answer:

Tanya is 18 years old.

Step-by-step explanation:

In order to determine this, we assume the following

x =  tens digit of the age of Tanya, and also the hundreds digit of Tanya's great-grandfather age

y = units digit of the age of Tanya, and also the units digit of Tanya's great-grandfather age

Therefore, we have:

10x + y = (1 / 6) * (100x + y)

Multiply both sides by 6, we have:

[10x + y] * 6 = [(1 / 6) * (100x + y)] * 6

60x + 6y = 100x + y

Collect the like terms, we have:

6y - y = 100x - 60x

5y = 40x

Divide through by 5, we have:

y = 8x

That is,

8x = y

Note that x and y has to be single digits. This can only be obtained only when x = 1 and y = 8. And given how x and y is defined above, we have:

The age of Tanya = 18

This can be verified as follows:

18 = 108 / 6

18 * 6 = 108

108 = 108

Therefore, Tanya is 18 years old.

The area of a trapezium is 360 cm² and its height is 18 cm. If one of the parallel sides is longer than the other by 6 cm, then the two parallel sides are.

Answers

Answer:

The two parallel sides a and b are 17 cm and 23 cm respectively

Step-by-step explanation:

Area of a trapezium = {(a+b)/2} h

Where

h = height = 18 cm

a = parallel side 1 = x

b = parallel side 2 = x + 6

Area of a trapezium = {(a+b)/2} h

360 = {(x + x + 6) / 2} 18

360 = { (2x + 6) / 2} 18

360 = (2x + 6) 9

360 = 18x + 54

Subtract 54 from both sides

360 - 54 = 18x

306 = 18x

Divide both sides by 18

x = 306 / 18

= 17

x = 17 cm

a = parallel side 1 = x

x = 17 cm

b = parallel side 2 = x + 6

x + 6

= 17 + 6

= 23 cm

Five roses cost $25 how many Roses can you purchase for $75

Answers

Answer: 15

Step-by-step explanation: 5 roses are 25 dollars so what your going to do is multiply 5 by 3 to get 15 do the same with 25, 25 x 3 is 75 so you will get 15 roses for 75 dollars

If you give me the right answer i will give you the brainlyest!!!!!!

Answers

Answer:

the graphed points are in the picture attached

They intersect at (-8,1)

It passes through the x-axis at (-10,0)

It passes through the y-axis at (0,5)

Step-by-step explanation:

:)

Answer:

its a blue line from one ten to anothor

what is the value of the expression below when x=8? 9x-5

Answers

72-5=67 there is your answer

Answer:

67

Step-by-step explanation:

9x−5

x=8

9(8)−5

72−5

=67

i need help on this please

Answers

Answer:

[tex]\frac{3}{7}[/tex] × [tex]\frac{5}{4}[/tex]

Step-by-step explanation:

Step 1. Turn the second fraction upside down (it becomes a reciprocal):

[tex]\frac{4}{5}[/tex] becomes [tex]\frac{5}{4}[/tex]

Step 2. Multiply the first fraction by that reciprocal:

[tex]\frac{3}{7}[/tex] × [tex]\frac{5}{4}[/tex] = ?

3 x 5 = 15

7 x 4 = 28

[tex]\frac{3}{7}[/tex] × [tex]\frac{5}{4}[/tex] = [tex]\frac{15}{28}[/tex]

Step 3. Simplify the fraction:

[tex]\frac{15}{28}[/tex] = [tex]\frac{15}{28}[/tex]  You can't simplify this fraction

Answer:

15/28

Step-by-step explanation:

Here is a list of numbers.
-45
-21
-16
12
33
40
Workout the sum of all numbers in this list

Answers

Answer:

3

Step-by-step explanation:

add all numbers

Answer:3

Step-by-step explanation:

The scale is 1:500 the students cell model has a length of 15 Cm.
How many cm is the real cells length
A. 33cm
B. 0.002
C. 0.03
D. 7500 cm

Answers

Answer:

Option C - 0.03 cm

Step-by-step explanation:

The model has a length of 15 cm.

Now, we are told that the scale is 1:500. This means that 1 unit is represents 500 cm on the model.

Since the length on the model is 15 cm which is 15 units, then the true length would be;

15 × 1/500 = 0.03 cm

Therefore, the true length is 0.03 cm.

Option C is correct

Answer:

0.03 cm

Step-by-step explanation:

Probability.

!!!!!!!!!!!!!!
will mark brainliest

Answers

Answer:

2/9ths hope this helps!

Please mark brainliest.

Step-by-step explanation:

what is 24-6x3+52-(12÷2)

Answers

The answer is 52 if it’s wrong I’m so sorry but my calculations said 52 the math was hard but it’s 52

Answer:

Step-by-step explanation:

524-6x3+52-(12÷2)

Multiplique los números

524-18+52- (12÷2) paso tres divida los números 524-18+52-6calcula la suma o resta 524-18+52-6=552solución=   x = 552

Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest form. a1 = – 25 an = an–1–14 an=

Answers

Given :

[tex]a_1=-25[/tex] .

[tex]a_n=a_{n-1}-14[/tex] .

To Find :

The general equation of [tex]a_n[/tex] .

Solution :

We know , when difference between any two consecutive terms in an A.P is equal , then the series is in arithmetic progression .

Now , common difference ,

[tex]d=a_n-a_{n-1}\\\\d=-14[/tex]

Also , first term is -25 .

Now , general term of an A.P is given by :

[tex]a_n=a+(n-1)d\\\\a_n=-25+(n-1)(-14)\\\\a_n=-25-14n+14\\\\a_n= -11-14n[/tex]

Hence , this is the required solution .

Let b represent the hours Liz spends babysitting. Let t represent the number of hours she spends tutoring. Given that Liz can work at most 12 hours per week, write an inequality that models the number of hours she spends babysitting and tutoring in a week.

Answers

So if b is hours for babysitting, and t is for tutoring she works 12 hours so it would be 12=b+t

Answer:

b+t < 12 (< has a line under it)

Step-by-step explanation:

Liz can work at most 12 hours per week. So, add the number of hours she spends babysitting, b, and the number of hours she spends tutoring, t, in a week, and represent the sum as less than or equal to 12:

b + t < 12

Also I just got done doing this problem my self

2. Which of these graphs represents a function?

Answers

Answer:

I think the first one.

Step-by-step explanation:

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