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November 26, 2014

November 26, 2014

Posted by **Mike** on Wednesday, May 14, 2008 at 8:27pm.

Use pi=3.14

(round your answer to the nearest TENTH)

If a cubic yard of concrete costs $75, using the rounded answer from above, what would be the cost for the concrete (rounded to the nearest dollar)

- Math -
**drwls**, Wednesday, May 14, 2008 at 8:44pmThe volume is pi D^2/4 * H

In cubic ft, this is

(3.14)*(1/4)*(4)^2*(16)= 201.0 ft^3. Divide by 27 ft^3/yard^3 for the number of cubic yards.

Then multipy by $75/yard^3 for the cost.

- Math -
**Mike**, Wednesday, May 14, 2008 at 8:50pmwould it be 7.4 cubic yards

and 558 dollars

- Math -
**drwls**, Thursday, May 15, 2008 at 2:07amYes.

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