Problema Solution
The length of a skating rink is 7 less than 3 times the width. If the perimeter of the skating rink is 82 feet, find the length and width of the skating rink.
Answer provided by our tutors
l = 3b - 7
2l + 2b = 82
or 2( 3b - 7) + 2b = 82
6b - 14 + 2b = 82
4b = 78
b = 19.5
l = 51.5