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Mathematics
OpenStudy (anonymous):

a rectangular pen for a pet is 4 feet longer than it is wide. give possible values for the width W of the pen if its area must be between 165 and 725 square feet, inclusively

OpenStudy (saifoo.khan):

\[165 <x(x+4) < 725\]

OpenStudy (anonymous):

If width = W,then area = W(W+4),by the problem, \[ 165 <x(x+4) < 725 \Rightarrow -29<x<-15\|11<x<25 \]

OpenStudy (anonymous):

ok so what was the W. I dont get this answer

OpenStudy (anonymous):

If width = W,then area = W(W+4),by the problem, then, \[ 165 <x(x+4) < 725 \Rightarrow -29<x<-15\|11<x<25 \] here x=W.

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