Question

A farmer builds a rectangular pen with 3 parallel vertical partitions (i.e. 4 vertical sides) using 900 feet of fencing. What is the maximum possible total area of the pen?

Answer 1

like this?

Answer 2

Im having problem with english in this " 900 feet of fencing".. could you rewrite in other words?

Answer 3

or that?

Answer 4

first!

Answer 5

the first one

Answer 6

the if we label the horizontal side x, and the height y, then you know that
\[5x+2y=900\] so
\[y=180-\frac{5}{2}x\] and the area will be
\[A(x)=x(18x-\frac{5}{2}x)\] if it is indeed the first picture