Question

You want to put in a new concrete patio behind your house. You want it to be 12 ft wide by 14 ft long and it needs to be eight inches thick. You know that an 80 lb. bag of concrete yields 0.60 cubic feet. How many 80 lb. bags of concrete will you need for your patio? (round to the nearest whole number , if needed )

Answer 1

Considering the volume of the rectangular prism, you will need 2240 bags will be needed for the patio.

What is the volume of a rectangular prism?

The volume of a rectangular prism of length l, width w and height h is given by:

V = lwh.

In this problem, the dimensions are:

l = 14 ft, w = 12 ft, h = 8 ft.

Hence the volume is:

V = 14 x 12 x 8 = 1344 ft³

Each bag yields 0.6 ft³, hence the number of bags is:

n = 1344/0.6 = 2240 bags.

More can be learned about the volume of a rectangular prism at https://brainly.com/question/17223528

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