Problema Solution
a rectangular lot whose permimeter is 280 feet is fenced along three sides. fencing along the lot's length costs $28 per foot. Another that runs along 2 sides costs $4 per foot. The total cost is $2720 for all three sides. What is the lot's deminsions?
Answer provided by our tutors
the length is x and width is y
x+2y = 280
28x + 2y(4) = 2720
So
x = 200/3
y = 320/3
So the length is 200/3 ft, the width is 320/3 ft