Question

Help!

The rectangle shown has a perimeter of 88 cm and the given area. Its length is 8 more than three times its width.
Write and solve a system of equations to find the dimensions of the rectangle.

Answer 1

l=35, w=9

Explanation:

l for length, w for width

System: l=8+3w, 2w+2l=88

2w+2(8+3w)=88 (substitute)

2w+16+6w=88 (distributive property)

8w=72 (combine like terms)

w=9 (divide by 8)

l=8+3(9) (substitute)

l=35 (solve for l)

l=35, w=9

Hope this helped :D