Question

the width of a rectangle is three more than half the length. its perimeter is 78 centimeters, find the length and width

Answer 1

length=l=21

width = w =18

Explanation:

78 = 2(2w +3 +w)

39 = 2w + 3+ w

39= 3w + 3

36=3w

18 =w

l=w+3 =18+ 3=21

so dimensions are

length=l=21

width = w =18

I think this is the answer, if not i'm so sorry :/