Let’s get your brains warmed up this morning.
BASIC TECHNICAL MATHEMATICS WITH CALCULUS
Allyn J. Washington
Duchess Community College
The Benjamin/Cummings Publishing Company
U.S. ISBN: ISBN 0-8053-8892-3
Canadian ISBN: ISBN 0-201-52464-3
Problem 14 / page 49
A rectangular security area is enclosed on one side by a wall, and the other three sides are fenced. The length of the wall is twice the width of the area, and the total cost of building the wall and fence is $13 200. If the wall costs $50/m and the fence costs $5/m, find the dimensions of the area.