SOLUTION: A rectangular field will be fenced on all four sides. Fencing for the north and south sides costs $9 per foot and fencing for the other two sides costs $8 per foot. What is the max
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Question 829718: A rectangular field will be fenced on all four sides. Fencing for the north and south sides costs $9 per foot and fencing for the other two sides costs $8 per foot. What is the maximum area that can be enclosed for $4800? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = area of the field
Let = length of the field
Let = the width of the field
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I can say;
and substitute
Multiply both sides by
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This is a parabola with a maximum at where
and since ft2
check answer:
The error is due to rounding off
