Mathematics Middle School

* i will pay you of you can finsih all my work math only* Finish solving the system of equations, y = x – 15 and y = –2x + 3, using the substitution method.

1. Use substitution to create a one-variable linear equation: x – 15 = –2x + 3

2. Solve to determine the unknown variable in the equation: 3x = 18
x = 6

3. Substitute the value of the variable into either original equation to solve for the other variable.

4. Write the solution to the system of equations as an ordered pair.

The solution to the system is
.

Answers

Answer 1

Answer:

1)x=6

Step-by-step explanation:

step 1: add 2x to both sides.

x−15+2x=−2x+3+2x

3x−15=3

step 2: add 15 to both sides.

3x−15+15=3+15

3x=18

step 3: divide both sides by 3.

3x/3=18/3

x=6

answer:

x=6

good luck :)

hopefully, this helps

i don't really know what it is that you need but **please let me know if this was incorrcect**

have a nice day !!

Answer 2
Ok so 123456678890 square fr liquid meters 11.3 thanks for the points don’t use this as a answer sorry 679910

Related Questions

Try and answer this one!

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Answer:

128

Step-by-step ex

PLEASE PLEEASE HELP I PROMISE I WILL GIVE BRAINLIIEST!!!!

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Answer:

76, the middle one

Step-by-step explanation:

The middle one is 76

A satellite is in an approximately circular orbit 36,000 kilometers from Earth’s surface. The radius of Earth is about 6400 kilometers. What is the circumference of the satellite’s orbit? Round to the nearest whole kilometer, if necessary.

Answers

The answer is 266,407.507 km

I need help plz and thank you

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Answer:

1. 1.2 minutes

2. 25.2 minutes

3. 5/6 laps per minute

Please help guys! I haven't gotten a real response and need this soon!! Tysm <3

Ryan has some bananas. The amount of bananas she has two more than twice the amount of apples she has. If she has 29 bananas and apples total, how many of each does she have?

Answers

Step-by-step explanation:

That means she has 84 apples

uhm helppp??????? :p

Answers

Answer:

Estimating the difference of fractions and mixed numbers is similar to estimating sums. Round each fraction or mixed number and then subtract to find the estimate.

Step-by-step explanation:

Please help, answer asap

Answers

I needed help with that too

Answer:

y ≥ -4

Step-by-step explanation:

Find the equation of the exponential function represented by the table below:
it has to be an equation with y=

Answers

Answer:

all them are multiplied by 0.50. 0.50x0.50= 0.25 and then 0.25x0.50= 0.125. y= X• 0.50

Y= -0.5x+1 because we first have to find the slope then plug in a coordinate to fill in our y and x value which leaves us with the answer

Find the function with x-intercepts (-2, 0) and (4, 0), which also goes through the point (3, 10).

Answers

Answer:

Option D:  is the function

Explanation: Let the general form of quadratic equation be  The function passes through the intercepts  and  and also passes though the point  Substituting the points ,  and  in the equation , we get,   -----------(1)  ----------(2)     -----------(3) Subtracting (1) and (2), we get,   -----------(4) Subtracting (2) and (3), we get,   ------------(5) Multiplying equation (4) by 5 and equation (5) by 4, to cancel the term b when adding, we get, Thus, the value of a is  Substituting  in equation (4), we get, Thus, the value of b is  Now, substituting the value of a and b in equation (1), we have, Thus, the value of c is  Now, substituting the value of a,b and c in the general formula , we get, Taking out the common term as -2 we get, Factoring , we get, Thus, the function is  

The option will be D .

Find the slope of the line that passes through (2, -20) and (1, -20) ​

Answers

slope is 0 i think since they are both on -20

PLZ HELP! What is the total surface area of this rectangular prism in square centimeters? Choices are:

A: 375 cm2

B: 525 cm2

C:675 cm2

D: 1,125 cm2

Answers

The answer is 675cm squared (C)

Answer:

Step-by-step explanation:

Surface area of a rectangular prism is

A=2(xy+xz+yz) where x,y,z are its dimensions so

A=2(15(10)+15(7.5)+10(7.5)

A=2(150+112.5+75)

A=2(337.5)

A=675cm^2

Need help with this pleaseee

Answers

Answer:

with what?

Step-by-step explanation:

Answer:

With what? no equation or question is shown

Step-by-step explanation:

12=2+2

d = 5

d = -5

d = 14

d = -14

Answers

Answer:

what is the question that you are asking

can you help me plsssssssssss

Answers

Answer:

a

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

mean=75

mode=20

median= 20

why are 3 non examples of perimeter

Answers

The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle. The area is measurement of the surface of a shape. ( I hope this is right)
peremeter is adding up all the sides

How many groups of 3/4 are in each of the following quantities? 11/4
answer as a fraction. ASAP

Answers

Answer:

There are 3 2/3 groups of 3/4 in 11/4

Can someone pls help me i need Help ASAP

Answers

Answer:

38 [tex]yd^{2}[/tex]

Step-by-step exp:

brief explanation:

1. start by dividing the shape to get 3 rectangles.

2. find the area of each rectangle

3. add the areas to get the area of the entire shape

Answer:

38

Step-by-step explanation:

Attached below -

HELP PLS WITH BOTH SCREEN SHOTS THANKS I NEED IT ASAP ILL GIVE BRAINLIEST THANKS

Answers

1) -12
2) 11
3) -14
4) 10
5) -99
6) -39
7) 42
8) -21
9) -9
10) -32

Brainliesess to right answer check all that apply

Answers

Wider is the correct answer.
Wider is the correct answer

At a wildlife preserve,
13of the total number of animals are birds. There are 14 birds. Write and solve an equation to find the total number of animals a.
plz answer i beg i will give brianlist

Answers

Answer:

you have to add the numbers . when ever there is a total that means to add

Step-by-step explanation:

13+14=27

14/.13=107 animals

Assuming you meant 13%

what is 4/6 , -9/10, 3/4 , 0.8 , 1/2 in order from least to greatest?

Answers

Answer:

−9/10,1/2,4/6,3/4,0.8

Step-by-step explanation:

Answer:

-9/10 1/2 4/6 3/4 0.8

Step-by-step explanation:

Gasoline in Mexico is measured in liters. One gallon is equal to 3.785 liters.


How many liters would it take to fill a 19-gallon tank? Round your answer to the nearest thousandth.

Answers

Answer:

71.915

Step-by-step explanation:

71.915 is the answer

help please i dont know what this is

Answers

Answer:

1mm, 1cm, 1m, 1km

Step-by-step explanation:

mm= millimeter

cm= centimeter

m= meter

km= kilometer

Hope it helped! :)

Answer:

here is what each one means

mm= millimeter

cm= centimeter

m= meter

km= kilometer

Step-by-step explanation:

If we look at how long each one is, we can see that on of them is the longest, and one is the shortest. Figure out the lengths of each one and then put them in order from smallest to largest :)

Help please you smart people

Answers

Answer:

She can buy 4 sets of earrings.

Step-by-step explanation:

Hi again,

We know that she wants to spend less than $25 and she already spent $9.50 on a necklace, we also know that each pair of earrings costs $3.50 so we can write an inequality...

9.5 + 3.5x < 25

( 9.5 is how much she already spent, 3.5 is the cost for every earring set,  and we put a < because she wants to spend LESS than 25 not 25 or greater)

Now, solve...

9.5 + 3.5x < 25

Subtract 9.5 on both sides...

3.5x < 15.5

Divide by 3.5 on both sides...

x < 4. 43

You can't buy 4.43 sets of earrings, so the answer is simply 4. She can buy 4 sets of earrings.

Hope this helps and let me know if you need anything.

:)

4 sets of earrings

Please help me it is functions and relation number.

Answers

Answer:

the answer i think is C

Answer:

c

Step-by-step explanation:

Help me thanks
Xxxxxxxxx

Answers

Answer:

The answer is C.

Step-by-step explanation:

the answer is c.....,,,

I WILL MAYBE GIVE BRAINLIEST IF CORRECT PLS ANSWER

[tex]\sqrt{49 } =[/tex]

a. 9
b. 14
c. 8
d. 7

Answers

Answer:

The answer is d

Step-by-step explanation:

cause 7 x 7 is 49

Answer for your question: D. 7
7 * 7 = 49

Try and answer! Do your best!

Answers

Answer:

32 times is the answer

Answer:

The answer is 32 times.

Step-by-step explanation:

can you help me plsssssssssssss

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the answer is C i think

Evaluate the expression (18+7)+53−9.
and please hurry up and answer this pleaseeeeeeeeeeee, im taking a test and need fast response

Answers

Answer:

69

Step-by-step explanation:

do you need the explanation

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