The volume of Olivia's rectangular lunchbox is 240 cubic inches. The lunchbox has a height of 3 inches, and its length is 2 inches more than its width. How wide is Olivia's lunchbox?

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Mathematics

Guest

16 March, 02:45

The volume of Olivia's rectangular lunchbox is 240 cubic inches. The lunchbox has a height of 3 inches, and its length is 2 inches more than its width. How wide is Olivia's lunchbox?

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Answers (1)

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Makenzie Walters · Answer 1

Volumn = Height*Width*Length

Width * (Width+2) = Volumn/Height=240/3=80

Width^2 + 2Width-80=0

(Width-8) (Width+10) = 0

Width>0 - > Width+10>0

-> Width-8=0 - > Width=8 inches