Problema Solution
A National Hockey League rink is 115 feet longer than it is wide. If the perimeter of the rink is 570 feet, find the dimensions of the rink.
length
Answer provided by our tutors
let 'w' represent the width, then 'w+115' represents the length
perimeter = 2(l+w), where 'l' and 'w' are length and width, respectively
570 = 2(w + w+115)
solving for 'w' we have w=85
85+115 = 200
the rink is 85 feet wide, 200 feet in length