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​Answered Questions

Volume of a box

9/28/2020

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​A packaging box has a length that is 5 more than width. The height is 10 more than length. Express in algebraic form the volume of the packaging box.

w = width
w + 5 = length
{length is 5 more than the width}
w + 15 = height {height is 10 more than the length}

Volume of a box (rectangular prism) = length x width x height

V = lwh
= w(w + 5)(w + 15) {multiplied width by length by height}
= (w² + 5w)(w + 15) {used distributive property}
= w³ + 15w² + 5w² + 75w {used FOIL method / distributive property}
= w³ + 20w² + 75w {combined like terms}

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