Problema Solution
A man built a walk of uniform width around a rectangular pool. If the area of the walk is 273 square feet and the dimensions of the pool are 18 feet by 14 feet, how wide is the walk?
Answer provided by our tutors
let 'w' represent the width of the walk
area = length * width
273 = (18+w)(14+w)
solving for 'w' we have a positive value of w=0.643
0.643 feet * 12 inches/foot = 7.716
the walk is approximately 7 3/4 inches wide