The volume of a box varies directly with its length. if the box has a volume of 90 cubic inches and a length of 15 inches, what is the constant of proportionality for the box?

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asked Sep 20, 2018 25.9k views

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SubashMahapatra · Answer 1 · 2018-09-26T02:02:53+0000

The direct variation formula is y = kx, with k being the constant of variation. Here, volume is our y and length is our x: 90 = k(15) and k = 90/15 so k = 6

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The volume of a box varies directly with its length. if the box has a volume of 90 cubic inches and a length of 15 inches, what is the constant of proportionality for the box?

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