A parking lot measures 100 by 130 feet. A sidewalk of uniform width is to completely surround the lot. If the sidewalk covers 1659 sq ft. how wide can the sidewalk be?

Can anyone help me get started? Thanks!

- Thread starter pochoa
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A parking lot measures 100 by 130 feet. A sidewalk of uniform width is to completely surround the lot. If the sidewalk covers 1659 sq ft. how wide can the sidewalk be?

Can anyone help me get started? Thanks!

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There is no one "master formula" that will solve every word problem. You generally need to create the formula for each problem.pochoa said:I can not figure out what formula I should be using for this!

Have you made a drawing yet?pochoa said:A parking lot measures 100 by 130 feet. A sidewalk of uniform width is to completely surround the lot. If the sidewalk covers 1659 sq ft. how wide can the sidewalk be?

Eliz.

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Isn't the "1659" the area of the walkpochoa said:This is what I have so far: (100+2x)(130+2x)=1659

And since the parking lot is bigger than 1659, then 1659 cannot be the sum of the lot's and the walk's area, can it...?

Eliz.

HOW in heck do you get 4x^2 + 460 as the result of (100+2x)(130+2x) :?:pochoa said:(100+2x)(130+2x)=1659

4x^2+460-1659=0

That should be 4x^2 + 460x + 13000;

guess it don't matter too much: equation is not correct (as Stapel told you).