Question

A rectangular flower garden in Samantha’s backyard has 100 feet around its edge the width of the garden is 20 feet what is the length of the garden use the number to write an equation and solve a number may be used more than once

Answer 1

The perimeter is 100ft
therefore
100=
$2(l + w)$
but w=20
$2(l + 20) = 100$
$2l + 40 = 100$
$2l = 100 - 40 \\ 2l = 60 \\ l = \frac{60}{2}$
$l = 30feet$