Using the Area Formula

by jason zimmerman
(omaha nebraska usa)

Determine the total amount of fertilizer in ounces (oz) needed to fertilize a rectangular lot with dimensions 24 yd by 21 yd if 3 oz of fertilizer is needed per square yard.How would I figure this out?

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Using the Area Formula

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Jan 30, 2011
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by: Karin

In order to solve this problem, you must first use the area formula to figure out how many square yards you have.

Area = Length x width

A = 24 x 21

A = 714 sq yds

If you have 714 sq yards and it takes 3 oz of fertilizer per square yard, then you must multiply 3 x 714.

3oz x 714 sq yds = 2142 oz of fertilizer.

You would need 2142 oz of fertilizer.

I hope this helps,
Karin

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