Problema Solution
a rectangular pen for a pet is 6 feet longer than it is wide. give possible values for the width w of the pen if its area must be between 247 and 775 square feet inclusively
Answer provided by our tutors
L = 6 + W
A = LW = (6 + W)(W)
247 < A < 775
6W + W^2 > 247
W> 13
6W + W^2 < 775
W < 25
13 < W < 25