A circular asparagus bed with a diameter of 6 ft is to be topped with screened organic compost to a depth of 2 ft. If compost co
sts $1.59 per cubic foot, how much will this cost? Compost is only sold in whole numbers of cubic feet.
1 answer:
Answer:
About $89.91
Step-by-step explanation:
The screening of compost creates a "cylinder" on top of the circular asparagus bed.
The volume of a cylinder is 
Where r is the radius [6/2 = 3]
h is the "depth" [h=2]
Now, the volume is:

We need 56.55 cubic feet, but it's not sold in fractional amount, so we will need 57 cubic feet of it.
Cost 1.59 per cubic feet, so we need
1.59 * 56.55 = $89.91
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