Shelf is 7 feet tall and 4 feet wide. it is 28 cubic feet. what is the depth?

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asked Dec 2, 2019 107k views

3 votes

Shelf is 7 feet tall and 4 feet wide. it is 28 cubic feet. what is the depth?

Mathematics
middle-school

Wwjdm asked

by Wwjdm

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$\bf \textit{volume of a rectangular prism}\\\\ V=Lwh~~ \begin{cases} L=\stackrel{depth}{length}\\ w=width\\ h=height\\[-0.5em] \hrulefill\\ h=7\\ w=4\\ V=28 \end{cases}\implies 28=L(4)(7)\implies \cfrac{28}{(4)(7)}=L\implies 1=L$

Marcello Grechi Lins answered Dec 7, 2019

by Marcello Grechi Lins

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