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3 years ago

Which statement about this system of equations are true check all that apply PLS H

Mathematics

2 answers:

irakobra [83]3 years ago

8 0

The x-variable will be eliminated when adding the system of equations since -2x + 2x = 0

The sum of the system of equations is 4y = -12, since 11y + -7y is -4 and -13 + 1 = -12

y = -3, since when you solve for y in 4y = -12 you get -3 (divide both sides by -4)

lidiya [134]3 years ago

8 0

The first statement is true because 2x + -2x = 0

3rd statement is also true.

Statement 5 is also true.

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Expand the linear expression below. 5(3x+5)

Gennadij [26K]

Answer:

15x+25

hope this helps

have a good day :)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Bill has a container that is shaped like a cube. He uses 125 cubes with a side length of 1 inch to fill the container completely

Annette [7]

Answer:

5 inches

Step-by-step explanation:

Given

Length of a cube = 1 inch

Required

Determine the edge length of the cube

If the container can take 125 cubes, then that's the volume

So:

$Volume = 125in^3$

Volume of a cube is calculated as thus;

$Volume = Length^3$

This gives;

$Length^3 = 125$

Take cube root of both sides

$Length = \sqrt[3]{125}$

$Length = 5$

Hence, the length is 5 inches

7 0

3 years ago

HELPPP!!!! ASAPPPP!!! 1. TRUE 2. FALSE

solniwko [45]

Answer:

False You just multiply the numbers by 5/3 I am pretty sure.

Hope it helps Have an wonderful day! :)

6 0

3 years ago

Every morning Sasha exercises for 20 minutes. She exercises k minutes every evening. Next week she will double her exercise time

lapo4ka [179]

If k=20 minutes
Each day Sasha will exercise 2 times more. 2 times more than k is 2k.
So first week Sasha will exercise k+2k+3k+4k+5k+6k=20+40+60+80+100+120=440 minutes
The formula to show how long Sasha will exercise each day next week is:
440 + 20*x
where 440 is initial exercise time, and x is number of day in next week.

8 0

4 years ago

Write an equation of a line that is parallel to y = x - 7 and passes through the point (-6, -11).

konstantin123 [22]

Answer:

y = x - 5

Step-by-step explanation:

Comparing the given y = x - 7 to y = mx + b, we see that the slope is +1.

In y = x + b we replace y with -11 and x with -6 to determine the y-intercept, b:

-11 = -6 + b

Then b must be -5, and so the desired new equation is

y = x - 5

3 0

3 years ago