SOLUTION: A rectangular pen is built with 100 ft of fencing. If a river is on one side of the pen (no fencing along this side) then an expression for the area A of the pen in terms of x is g

Question 1040221: A rectangular pen is built with 100 ft of fencing. If a river is on one side of the pen (no fencing along this side) then an expression for the area A of the pen in terms of x is given by? I'm sorry, this question is worded quite oddly.
Diagram Below: (periods have no significance, just there to make it look right)
Lines (|) and dashes (-)= fencing
~~~= River
River
~~~~
|........| X
|........|
--------
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

.
.
.
.
So then the other side can be calculated using,

So the area of the rectangle would be,

Substituting,

RELATED QUESTIONS
A rectangular pen is built by using 100 ft of fencing. If a river is on one side and no... (answered by Fombitz)

A rectangular animal pen is built using 200 meters of fencing. If one side of the... (answered by macston)

A rectangular animal pen will be built using 200 meters of fencing. If one side of the... (answered by knighty2002uk)

Can someone help me with this question: A rectangle animal pen will be built using 200... (answered by stanbon,Alan3354)

Word problem from instructor: Farmer Jones has 385 yards of #38 ga. chicken wire fencing... (answered by rfer)

A rectangular animal pen with area 1200 ft.� has one side along a barn the other three... (answered by ewatrrr)

300 ft of fencing is available to fence a rectangular pen where one side will be ordered... (answered by rfer)

A rectangular animal pen with area 1200 m^2 has one side along a barn. The other three... (answered by checkley75)

A rectangular animal pen will be built using 200 meters of fencing. If one side is 60... (answered by Alan3354)