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- anonymous

10. A small office unit is to contain 100 ft2
of floor space. A simplified model is shown in the
figure.
(a) Use an equation to express the length y of the building in terms of the width x.
(b) If the walls cost $500 per running foot, use an equation to express the cost C of the
walls in terms of the width x. (Disregard the wall space above the doors and the thickness
of the walls.)

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- anonymous

can you show work please?

- anonymous

Okay we know the floor area of the office is 100 ft^2. The area is given by A=length*width
So let x=width and y=length
A=x*y
We know that the area is 100 so,
100=xy
Now that you know the equation can you rewrite this so that y is in terms of x?

- anonymous

where is the simplified figure mentioned in the question????

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- anonymous

do you need help rearranging this 100=xy?

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