Posted by matt on Wednesday, December 23, 2009 at 8:01am.
what is the Tenths place
what is the tenths place?
IN the fraction 4.5, the five is in the tenths place.
For matt: I dont understand how a rectangular pen can have a different width n each end.
yeah i dont understand the wording but the diagram shows that each end of the entire rectangular pen is 2x
I could be a matter of interpretation.
It said, "four individual square pens bordered by a rectangular pen of a different width on each end"
You have the rectangles fanning out on one side of the squares. Could it not also mean that they fan out on all sides of the squares, so that there would be 10 rectangles with the squares in the middle?
Just wondering if that is the problem.
Anyway, according you your interpretation, I got
20x + 5y = 100
4x + y = 25
y = 25-4x
for
A = 4x^2 + 5x(25-4x)
expanding this, differentiating and setting that equal to zero, gave me
x = 25/6 ft.
If you also got that, try the different interpretation.
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