2 years ago

Solve each system by substitution. 1) y= 2x - 16 y= -2

Mathematics

1 answer:

DochEvi [55]2 years ago

7 0

Answer:

x = 7

Step-by-step explanation:

Solve equation [2] for the variable y

[2] y = - 2

Plug this in for variable y in equation [1]

[1] (-2) - 2x = -16

[1] - 2x = -14

Solve equation [1] for the variable x

[1] 2x = 14

[1] x = 7

Solution:
y = -2
x = 7

You might be interested in

WILL GIVE BRAINLIEST! BUT YOU MUST EXPLAIN<br><br> explain clearly ...

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

Add all numbers then divide by 6 (Add all numbers including 94 then divide by six to get your answer)

5 0

2 years ago

Read 2 more answers

If AD equals 3X +3 CD equals X +9, what is the value of X?

kirill [66]

Answer:

x=3

Step-by-step explanation:

2x+3=9

2x=6

x=3

5 0

3 years ago

14. Janie Christopher lent $6000 to a friend for 90 days at 12%. After 30 days, she sold the note to a third party for $6000. Wh

Elenna [48]

Can you do plsssssssss

help me plssssssssssss meee

3 0

2 years ago

The length of a rectangular floor is 2m longer than it's width w. the area of the floor is 120m^2

KengaRu [80]

the width is 60

hopes this helps you

6 0

3 years ago

Given the function g(x)= -x^2 + x + 5, determine the average rate of change of the function over the interval -4 ≤ x ≤ 3.

OleMash [197]

Answer:

The average rate of change is 2.

Step-by-step explanation:

We are given the function:

$g(x)=-x^2+x+5$

And we want to find the average rate of change over the interval:

$-4\leq x\leq 3$

The average rate of change is synonymous with the slope. So, we will evaluate the function at its endpoints and find the slope between them.

Our first endpoint is given by:

$g(-4)=-(-4)^2+(-4)+5=-15$

And our second endpoint is given by:

$g(3)=-(3)^2+(3)+5=-1$

This gives us two points (-4, -15) and (3, -1). The average rate of change will be the slope between them. Thus:

$\displaystyle ARC=\frac{-1-(-15)}{3-(-4)}=\frac{14}{7}=2$

The average rate of change is 2.

8 0

3 years ago