Question by Summer Clouds - Discuss with MathYouLike

Summer Clouds moderators

08/08/2017 at 08:40

Bailey is estimating the volume of a container. The container is a cube that measures 2 feet 7 inches on each edge. Bailey estimates the volume by using 3 feet for each edge. In cubic inches, what is the positive difference between Bailey’s estimate and the actual volume?

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Phan Thanh Tinh Coordinator 08/08/2017 at 09:00

Convert : 2 feet 7 inches = 31 inches ; 3 feet = 36 inches

The positive diference between Bailey's estimate and the actual volume is :

36³ - 31³ = 46656 - 29791 = 16865 (cubic feet)
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Lê Quốc Trần Anh Coordinator 08/08/2017 at 09:04

Convert: 1 feet = 12 inches

The differance between the measure of Balley and the actual size is: \(3ft-2ft7inch=5inches\)

So the positive differance is: \(5.5.5=125\left(cubic-inches\right)\)

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