$-2+4(-5+2m)=5(4-2m)+5m\ \ \ \ |\text{use distributive property}\\\\-2+(4)(-5)+(4)(2m)=(5)(4)+(5)(-2m)+5m\\\\-2-20+8m=20-10m+5m\\\\(-2-20)+8m=20+(-10m+5m)\\\\-22+8m=20-5m\ \ \ \ |+22\\\\8m=42-5m\ \ \ \ \ \ |+5m\\\\13m=42\ \ \ \ \ |:13\\\\\boxed{m=4}$

7 0

3 years ago

Read 2 more answers

What is the answer to this math question?

Dvinal [7]

The correct answer is:

C) 40°

4 0

3 years ago

A cube has side length a. The side lengths are decreased to 40% of their original size. Write an expression in simplest form for

o-na [289]

$V=a ^{3}$ originally. Then you reduces the side lengths a so it will be $V=( \frac{2}{5} a)^{3} = \frac{8}{125}a^{3}$
Just note that 40% is the same as 2/5.<span />

6 0

2 years ago