Heng was trying to factor 10x^2+5x. She found that the greatest common factor of these terms was 5x5x5, x and made an area model:

Step-by-step explanation:

Given

Required (Missing)

Determine the Width?

Area is calculated as:

Substitute values for Area and Length

Factorize the right hand side

Divide both sides by 5x

Hence, the width of the model is 5x + 1

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10