Mathematics Middle School

Solve the system by substitution
2y-2x=8;x+y=14

Answers

Answer 1

Solve for the first variable in one of the equations, then subsitute the result into the other equation.

Point Form: (5, 9)

Equation Form: x = 5, y = 9

Answer 2
Answer:

Simplifying
2y + -2x = 8

Reorder the terms:
-2x + 2y = 8

Solving
-2x + 2y = 8

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2y' to each side of the equation.
-2x + 2y + -2y = 8 + -2y

Combine like terms: 2y + -2y = 0
-2x + 0 = 8 + -2y
-2x = 8 + -2y

Divide each side by '-2'.
x = -4 + y

Simplifying
x = -4 + y
___________________________________

Simplifying
x + y = 14

Solving
x + y = 14

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1y' to each side of the equation.
x + y + -1y = 14 + -1y

Combine like terms: y + -1y = 0
x + 0 = 14 + -1y
x = 14 + -1y

Simplifying
x = 14 + -1y

Hope that helps you :)

Related Questions

HURRY!!! GIVING BRAINLISTS. DUE IN 3 MINUTES!!!!!

Write a division equation that represents 4 pizzas shared evenly with 6 people.

Answers

Answer:

4/6 or 2/3. the answer to that would be how much eat person gets

Answer:

4x/6

Step-by-step explanation:

Since we don't know how many slices there are you would put x to subsitute the value and divide by 6. Hope this helps.

Paige earned $15.50 per hour. She received a 10% raise. Paige worked 10 hours at her new salary. How much did Paige earn?
A. $1.55
B. $17.05
C. $170.50
D. $294.50
(Don't need to show work.)

Answers

Answer:

C- $170.50

Step-by-step explanation:

Answer:

The Answer C $170.50

Step-by-step explanation:

just turn 10 percent into a decimal and them together and then you have your answer

Write and equation for the area of the circle given the following conditions:

d = 15

Answers

Answer:

A = π (7.5)²

Step-by-step explanation:

A = π r²

A = area

r = radius

radius is half of the diameter, so the radius is half of 15, therefore radius is 7.5. Plug that in, and you get the equation. To solve, just put  π (7.5)² into your calculator to get the area

Eight avocados cost $4.

How much do 9 avocados cost?

Answers

Answer:

$4.50

Step-by-step explanation:

if eight cost $4 that means each avocados cost 50 cents

4.50& because it was half now it’s whole

What are the coordinates of the image of point B after a dilation with center (0, 0) and scale factor of
one divided by two

Answers

-5, 3. Hope that helped.
Helped me a lot thank you!

A certain map shows two roads. road A is 1 1/5 miles long but is 1 1/2 long on the map. What is the unit rate for inches per miles on this ​map? If B is 4 miles ​long, how long is road B on the ​map?

Answers

Answer:

5/4 in per mile

10 in on map

Step-by-step explanation:

Maybe 12 and 90 so 100 miles

On a map Rossville and Smithtown are 5 1/2 inches apart. If the actual distance between the town is 16 1/2 miles, to what unit rate is the map drawn?
A. 1 inch = 2 1/2 miles
B. 1 inch = 3 miles
C. 1 inch = 3 1/3 miles
D. 1 inch = 11 miles

Answers

Answer:

c

Step-by-step explanation:

The answer is C because it obviously is 1 2 3 4 5 6 7 8 9 10

Tyra has a bag containing four balls: one red, one blue, one green, and one yellow. All balls are equally likely to be chosen. Tyra will choose one ball without looking in the bag.
What is the probability that Tyra will choose the green ball out of the bag?

Answers

Answer:

Answer To your question

Step-by-step explanation:

It has be 1/1 because all the balls have a equal chance

Answer:

C. 1/4

Step-by-step explanation:

Since there are four total, 4 should be the denominator, and since there is 1 chance out of four the 1 will be the numerator. That is how I got 1/4 as my answer.

Hope this helps :D

Please help me

The altitude of Pocahontas's plane is shown in the graph below compared to the amount of time that the plane was flying. How many feet did the plane ascend?

Answers

The answer is 27 feet

Help plz you can just find the area not the other part

Answers

$6.25 is the price it will cost for 15 sq ft

$18.75

Step-by-step explanation:

but in the question you are trying to find the price for it and if the area is 15 then you multiply 15 x 1.25 = $ 18.75

Which two ordered pairs represent a proportional relationship?
A.
(3, 2) and (6, 4)
B.
(3, 2) and (6, 6)
C.
(4, 2) and (6, 4)
D.
(5, 3) and (6, 4)

Answers

Answer: its A!

Step-by-step explanation:

It’s A because 3 is proportional to 6 and 2 is proportional to 4

2/3 divided by 5/9



Simplify ! The answer must be in simpliest form.

a
10/27
b
15/18
c
1 and 1/5
d
1 and 3/15

Answers

The answer is 1 1/5

Hope this helps
1 1/5 hope this helps

Solve for each unknown angle measure given that ℓ1∥ℓ2.

Answers

Answer:

x is 25 y is 25 and z is 115

Step-by-step explanation:

Write and equation for the area of the circle given the following conditions:

r = 5.5

Answers

Answer:

?

Step-by-step explanation:

HELP PLEASE ILL GIEV CORRECT ANSWER BRAINLY!

Answers

Answer:

number 3

Step-by-step explanation:

i took the test

Answer

It’s 3



Step-by-step explanation


I did the test

help me, please ??????????/

Answers

Answer:

Step-by-step explanation:

a.  $289 + 1.99x

b. $304.92

c. $289 + 1.99x +18.50y

d. $ 372.95

anwser: $372.95


step by step explanation:

Right answer gets brainliest-
What is the distance from M to N?

-Please don't guess-

Answers

Answer:14

Step-by-step explanation:

Answer:

c. 14 units. i think it is correct

Find the inequality represented by the graph ​

Answers

Answer: B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Please help me please, I will give you the brain thing and extra points please help me. 1/5

Answers

Answer:

Second Picture Top RIGHT

Step-by-step explanation:

6*3(dilation)=18 there is only one shape with a length of 18.

Write a newspaper article using all of these words and definitions Cone, Perfect Square, Side, and Width.

Answers

Answer:

Step-by-step explanation:

There are four different ways that Roger can walk from his house to work. Which route is the shortest distance? (Hint: 1 yd ≈ 0.9 m)


Route Distance
A 1350 feet
B 1500 meters
C 320 yards
D 4 kilometers

Answers

I personally converted everything to feet.
We know that A= 1350 feet.
B= 1500 meters, and 1 meter equals about 3 feet. 1500*3 = 4500, so that tells us B is not the correct answer.
C = 320 yards. There are 3 feet in a yard. 320*3 = 960. A is now also incorrect.
D= 4km. It’s clear to say that there are thousands of feet in a single kilometer, so that removes D.
Thus, we are left with C, at 320 yards or 960 feet. This shows that C, 320 yards, is the shortest distance.
c, it is the fastest way home

HELP! WILL MARK BRAINLIEST IF CORRECT!

Answers

1st box is $190
2nd box is 250
I think it’s 190 for the first part and 250 for the second, please correct me if I’m wrong.

Julio has 8 pounds of candy. He wants to put the candy into the bags so that each bag has
ound. Which equation shows how to calculate the number of bags of candy Julio can
make?!?!

Answers

Answer:

A.

Step-by-step explanation:

16 x 1/2 = 8 represents a true equation. 16 represents the bags, 1/2 represents the weight of the bags, and 8 represents the total weight of the candy to distribute.

Answer:

a

Step-by-step explanation:

can u do the 2 pls.........

Answers

The first one I think it’s C
1. A
2. C
I think don’t be mad if not

A student has a container with a volume of 1.5 liters.She estimates the volume to be 0.9 liters. By what percent is the​ student's estimate​ off?

Answers

Answer:

38%

Step-by-step explanation:

9/1.5=138

138-100=38%

Answer:

38%

Step-by-step explanation:

please help, im struggling

Answers

x=-1

Explanation: you can got answers in mathhway
Brainlist if it is not hard
x=-1 is the answer to the question

Can you help me with this one to?
please hurry and make sure its right, I have no attempts left after this and I can fail bc I'm in a catch up class

Answers

Answer:

85

Step-by-step explanation:

Answer:

Step-by-step explanation:

Did you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 5 chickens eat 8 apples. What is the ratio of the number of chickens to apples?

3:8
5:8
8:3
8:5 plz help thx

Answers

5:8 I think it is ...

Answer:

The answer is 5:8

Step-by-step explanation:

The reason why i got 5:8 is because it says The farmer observes that 5 chickens eat 8 apples. so if you stop and think the best answer would be

5:8.

Michael spins the spinner below 400 times. Predict how many times the spinner landed on yellow.

Answers

The spinner would land on the yellow about 100 times looking at the graph.

Answer:

100 times

Step-by-step explanation:

Because there is only one yellow and 400 divided by 4 is 100. But if it was blue it would be 200 because to of the triangles are blue

A random sample of people is chosen to participate in a survey. For the survey results to be considered valid, which must be true of the random sample?

The sample must be the same size as the population.

The sample must represent the target population.

The sample must be biased.

The sample must be a group separate from the population.
ANSWER BELOW HERE
B - The sample must represent the target population.

Answers

Answer The sample must represent the target population.

Step-by-step explanation:

Answer:

The sample must represent the target population

Step-by-step explanation:

To figure out the answer to can eliminate the answers that don't make sense.

The question is A random sample of people is chosen to participate in a survey. For the survey results to be considered valid, which must be true of the random sample?

Lets look at our answers-

A: The sample must be the same size as the population.

That does not make sense as the answer because the sample doesn't always have to be the same size as the population. So let's cross that out.

B: The sample must represent the target population.

That Makes the most sense because if you have a survey and your trying to get people opinion the sample must represent the target.

C: The sample must be biased.

This answer also makes a bit sense but not as much as B.

D: The sample must be a group separate from the population.

This is wrong because if your trying to get multiple peoples opinion you don't need a specific or separate group from the population.

So, Our answer is B: The sample must represent the target.

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