Mathematics Middle School

pls help me I need the right answer

20 pts pls​

Pls Help Me I Need The Right Answer20 Pts Pls

Answers

Answer 1
X=75
All the angle have to add up to 540°

Related Questions

3x - 7x + 2 < 10 - 12

14w - 8w - 5.4 ≥ 7.3- 10

PLS HELP ASAP

Answers

Answer:

first one is x>1

second one is w≥0.45

Step-by-step explanation:

1. −4x+2<10−12

−4x<−2−2

−4x<−4

2. 6w−5.4≥7.3−10

6w≥2.7

Answer:

x>1

w>=0.45

Step-by-step explanation:

I'm assuming you want to simplify the equations.

Match each value of y with the corresponding value of the function?
f(y) = y + y 2 - 3

1. f(-2) a. 9
2. f(-4) b. 3
3. f(0) c. 17
4. f(2) d. -1
5. f(4) e. -3

Answers

Answer:

well... 1=b/ 2=e/ 3=c/  4=d/ 5=a

Step-by-step explanation:

my head hurts just from readying this probelm it might be wrong im sorry i hop it helped

The Kirkland family is buying a new living room set that costs $1,495.

They are going to put a down payment of $400 and then put the rest on

their credit card that has an annual interest rate of 28%. If they pay off

the furniture in 1 year, how much interest would they pay?

Answers

Answer:   173.04 dollars

======================================================

Explanation:

The down payment is $400, so that means they must pay back 1495-400 = 1095 dollars. Let L = 1095 be the amount loaned

The annual interest rate is 28% which means r = 0.28; the monthly interest rate is i = r/12 = 0.28/12 = 0.02333 approximately

There are 12 months in a year, so n = 12 is the number of payment periods

----------------------------------------

In summary so far, we have

L = 1095i = 0.02333 (which is approximate)n = 12

Those values will be plugged into the monthly payment formula below

M = L*( i*(1+i)^n )/( (1+i)^n - 1 )

M = 1095*( 0.02333*(1+0.02333)^12 )/( (1+0.02333)^12 - 1 )

M = 105.671914631108

M = 105.67

The monthly payment is $105.67

If they have a monthly payment of $105.67, and they pay that for 12 months, then 12*105.67 = 1,268.04 dollars is the amount of money they pay back to the credit card company.

The total amount of interest would be 1,268.04 - 1,095 = 173.04 dollars

Side note: the formula is a complicated ugly mess, so it's understandable to use calculators that already have the formula built in. Many websites offer free calculators that do this.

The equation of a line given two points needs to be found. Samuel claims that slope-intercept form will generate the equation and Helena claims that point-slope form will find the equation. Who is correct? Explain your reason by describing both forms.

I know the answer. Just want to see if its close to anyone elses.

Answers

Both answer are correct plz mark me brainlyest

Answer:

The answers below are all right :D

Step-by-step explanation:

My answer: Both are correct because to find the equation u need both the pointslope form and slope intercept form.

Short Answer: Both Samuel and Helena are correct.  Both forms result in the same equation.  Slope-intercept uses slope and a point to find the y-intercept.  Point-slope uses slope and a point to solve for y to form the equation.

Sample Response: Both are correct. Using either form will result in the same equation. The slope-intercept form uses slope and a point to find the y-intercept. Point-slope form uses the slope and a point to solve for y to generate the equation.

Brainliest plz

6x-2y=-2

7x-7y=14


I’ve been using the elimination method but I keep getting the wrong answer. The answer I’m getting is (-3/2,-7/2). I’m just trying to not get fractions as an answer. Thanks for helping out if you can! (I still need to use elimination method without getting a fraction in the ordered pair)

Answers

Answer:

7x-7y=14

x=3 and y= 1

i think :)

Step-by-step explanation:

you’re not wrong! i did the work and got the same thing as you.

Which ordered pair (x, y) can be added to the table so that y is still a function of x?

Answers

Answer:(17,8)

Step-by-step explanation:

Answer:

(1,1)

Step-by-step explanation:

A function cannot contain two points with the same x-value.

I would like to ask anyone if they would mind helping me if they could explain in a way that makes sense, how to find the y-intercept with two points... please help me, google tells me how but my head hurts and it makes no sense TwT ty in advance!!

Answers

Answer:

Ok so the two points that are given need to be in the form of y2-y1 over x2-x1, meaning the x value from the second set of points needs to be subtracted from the x value from the first set of points, and it is the same for the y values. Then that gives you the slope. You add the slope to the equation y=mx+b. The slope is m, so you put the slope in the m spot. If the slope were 3, it would look like y=3x+b because it is in the m spot. Then, you can choose any 1 set of points given and plug it into the equation. I am going to use the slope 3 , like the last example, and plug it in with the set of points. Say the point was (5,2), you will plug the x value, which is 10 in the situation, next to the the slope. The slope will then be 3(5). Then you will plug in the y value, which is 2, into the y place. At the end, the equation will look like this: 2=3(5)+b. Then you multiply 3 and 5, which is 15, and subtract 2 and 15 which will give you -13. The answer will then be -13=b. That is the y-intercept.

Step-by-step explanation:

hey! if you have the equation, for example:

y=3x+4

the y-intercept would be 4! this is an easy hack to use if you already have the equation. in an equation, the number on the very end will always be your y-intercept if it is correctly written in slope intercept form.

if you do not have the equation but have the points, the y-intercept would be the point on the line that touches the y-axis first.

for example:

the line crosses through the 3rd line on the y axis. your y-intercept would be 3. it is the point in which your line crosses on the y-axis line that goes up and down the middle of the graph.

comment on my answer if you have any questions! hopefully this helps.

which symbol would make this statement true?
3 __ 4 __ 5
1. =
2.
4. ≤
5. ≥

Answers

number 2

Step-by-step explanation:

4 is greater than 3, 5 is greater than 4.

4 is the answer you are looking for

Dean loves rocks! He has 666 pieces of granite, 333 pieces of marble, 141414 pieces of sandstone, and 111 pieces of slate.

What is the ratio of pieces of sandstone to pieces of marble in Dean's collection?

Answers

Answer:

The ratio of sanstone to marble is... 141414 : 333

All you have to do is look at how much sandstone Dean has and how much marble he has, then put the amount of sandstone infront of the amount of marble because in the question it says what is the ratio of sandstone to marble and you see that sandstone is first.

Hope this helps! :)

Stay safe

If you found a company that paid 6% interest but only compounded your money once per year, how much money would be in your account on your 18th birthday? Show all your work.

Answers

6% of a thousand = 60 so,
60 x 18 = 1080

sorry I’m out of points I need to do this

help plz math is so hard

Answers

is this 2 different questions?
Answer for the table is y= x multiplied by 2


Answer for the graph is y= x multiplied by 3


Hope this helps!!

14, 20, 26, 32,... find the 78th term for the arithmetic sequence

Answers

Keep adding 6 and you will find the 78th term!
It’s a pattern you would you the recursive equation, 6Xn1 + 8 if you plugged it in it would be, 6(78) = 468 + 8 the answer would be 476

HELP ME ASAPPPP, i'LL GIVE YOU BRAINLIST!!! NO NONSENSE ANSWERS PLS!
1 SLIDE OPTIONS.
$515
$575
$600
$650
SLIDE 3 OPTIONS
5 percent
15 percent
25 percent
30 percent
SLIDE4 OPTIONS
$87.55
$123.50
$149.22
$218.50

Answers

                          ∧

Answer:

1, 3, and 4

Step-by-step explanation:

Make him Brainliest he was first.

                   

Please explain in complete sentences
Explain how you might go from gallons to cups using more than one conversion factor.

Answers

Answer:

You go from Gallons to Quarts To Pints To Cups

Step-by-step explanation:

1G= 4Q= 8P= 16C

it goes gallons to quartz to pints to cups

what is the slope of the line on the graph?

-1

-2

Answers

2/2 which = 1 whole is the slope

Can I combine these terms? If so, what would the answer be? 5x+9x

Answers

Yes, because they are like terms. So the answer would be 14x (like normal addition since it’s like terms)

Answer:

yes you can and it would be 14x

You place a billiard cue against a billiard table. The foot of the billiard cue is 15 cm away from a table and the top of the billiard cue touches the table at a point 60 cm off the ground. what is the slope of the billiard cue?

Answers

Answer:

It would be 4

Step-by-step explanation:

When dealing with slope its always going to be rise over run, so 60/15 is 4

Hope this helps :)

You place a billiard cue against a billiard table. The foot of the billiard cue is 15 cm away from a table and the top of the billiard cue touches the table at a point 60 cm off the ground. what is the slope of the billiard cue?poroso opoo

Alejandro has gone to school StartFraction 5 Over 7 EndFraction of the last 35 days. Which expression can be used to determine the number of days Alejandro has gone to school?35 divided by 7 = StartFraction 5 Over 7 EndFraction
35 times StartFraction 5 Over 7 EndFraction
StartFraction 5 Over 7 EndFraction divided by 35
StartFraction 7 Over 5 EndFraction divided by 35

Answers

Answer:

35 times 5/7

Step-by-step explanation:

5/7 is a decimal and when multiplied by 35 it turns into 25 days. 25/35 is 5/7 so the answer makes sense

Answer:

25 Days

Step-by-step explanation:

Do 5/7 * 5/5 and then you get 25/35 which the numerator is how many days he went out of those 35 days

A laptop has a listed price of $899.95 before tax. If the sales tax rate is 6.5%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

the total cost of the laptop with tax is 958.45

Step-by-step explanation:

A line passes through the points (–3, –4) and (6, 2).

Answers

Y=2/3x-2
That’s what I got if it’s wrong I’m sorry haven’t done this kind of work in 1 maybe 2 years

Answer:

-3

Step-by-step explanation:

The x-intercept is 3, here's why

First, you need to get the slope

y2-y1

--------

x2-x1

You should get 2/3

Next, you need to use y=mx+b

y= 2/3x+b

2= 2/3(6)+b       You get 6 and 2 from the coordinates

Once this is worked out you'll get y=2/3x-2

To get the x intercept you need to set y equal to 0

0=2/3x-2

Add 2 to each side

0-2 = 2/3x

Multiply each side by 3/2 to isolate x

-2 *3/2 = 2/3x * 3/2

-3 =x

The x intercept is -3

Hope this helped, Brainliest appreciated :)

Pleas Help!!!
|2s-7|≥-1

Answers

Answer:

\frac{1}{2}s=\frac{7}{2}

Step-by-step explanation:

Answer:

s=− 2/7 =−3.500

Step-by-step explanation:

Need help with this math problem

Answers

Answer:

y= -2x plus 16

Step-by-step explanation:

Answer:

y= 2x + 16

Step-by-step explanation:

mark me as brainliest

Need help with this. Please don't answer if you're not sure thanks!

Answers

1/9



Explanation:

9(3)^-4

Answer:

C: 1/9

Step-by-step explanation:

( -20 , 14 ) and ( 30, 18)
Slope, Explanation needed please HELPPPPPP

Answers

Answer: 2/25

Step-by-step explanation:

The formula to find the slope is (y2-y1)/(x2-x1)

If you plug in the numbers, you get (18-14)/(30-(-20))

Solve the expression and you get 4/50 = 2/25

So your answer is 2/25

Answer:

the slope is 2/25.  use the formula m= y2-y1/x2-x1 and plug in the points

Easiest question
Please help

Answers

Step-by-step explanation:

If its so easy why dont you do it?

Answer:

yea if it easy y cant u do it

Step-by-step explanation:

Drag each equation to show if it could be a correct first step to solving the equation 8(x + 5) = 56.

Answers

Answer:

8x+40=56

Step-by-step explanation:

You have to distribute the 8

Then finish the rest of the problem

Suppose f(x) = x^2 - 8
Evaluate f(2) - f(-3)

Answers

What grade are u at

I hope this is right

A company manufactures two types of cabinets, type 1 and type 2. It produces 110 total cabinets each week. Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20. If x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced, the system of equations that represents this situation is x + y = 110 and y = 2x + 20. The number of type 2 cabinets produced last week is . This number exceeds the number of type 1 cabinets produced during the week by .

Answers

Answer:

I am not 100% on this but i think it is 65

Step-by-step explanation:

I believe the answer is 65. Hope this helps

You bought 5.5 lbs of Hamburger meat and you want to make .25 lb burgers, how many burgers can you make if you use all 5 1/2 lbs?

Reasking because need a correct answer (no offense to who answered before)
Dividing decimals

Answers

Answer: 22 burgers

Step-by-step explanation:

5.5 / 2.5 = 22
5.5 Divided by 2.5 = 22

Harrison has 70 CDs in his music collection. If 10% of the CDs are country music and 60% are pop music, how many CDs are other types of music?

Answers

Answer:

21

Step-by-step explanation:

The number of CDs of another type of music will be 21.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Harrison has 70 CDs in his music collection. If 10% of the CDs are country music and 60% are pop music.

The percentage of the other CDs will be:-

P = 100 - 60 - 10

P = 30%

The number of the other CDs will be:-

Number = 70 x 30%

Number = 70 x ( 30 / 100 )

Number = 21

To know more about an expression follow

https://brainly.com/question/13882635

#SPJ2

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