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A contractor is pouring a concrete wall is that is four feet high , 18 inches thick and 375 feet long . How many cubic yards of concrete will it take to pour wall ?

Sagot :

We are given the following dimensions of a concrete wall.

Height = 4 feet

Width = 18 inches

Length = 375 feet

We are asked to determine how many cubic yards of concrete will it take to pour the wall.

Recall that the volume of a rectangular prism is given by

[tex]V=l\cdot w\cdot h[/tex]

Where l is the length, w is the width, and h is the height.

First, we need to convert all the given dimensions to yards.

There are 3 feet in 1 yard.

[tex]\begin{gathered} h=4\times\frac{1}{3}=\frac{4}{3}\; yd \\ l=375\times\frac{1}{3}=125\; yd \end{gathered}[/tex]

There are 36 inches in 1 yard.

[tex]w=18\times\frac{1}{36}=0.5\; yd[/tex]

Now, we have all the dimensions in yards, let us substitute them into the formula

[tex]\begin{gathered} V=l\cdot w\cdot h \\ V=125\cdot0.5\cdot\frac{4}{3} \\ V=83.33\; yd^3 \end{gathered}[/tex]

Therefore, 83.33 cubic yards of concrete is required to pour the wall.

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