Question

Help!! I promise riches upon answers this question correctly!!

Answer 1

It is given that the width of the border is 2[ (12 + 2x) +  (15 + 2x) ]  = 74

Solve x:

2[ (12 + 2x) +  (15 + 2x) ] = 74

2 [ 12 + 2x + 15 + 2x) ] = 74

2[27 + 4x]  = 74

27 + 4x = 37

4x = 10

x = 2.5 feet = 2 1/2 feet

Answer: 2 1/2 feet