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2 years ago

5

A 21 inch piece of steel is cut into three pieces so that the second piece is twice as long as the first, the third piece is 3 i

nches more than three times the length of the first piece. find the lengths of the pieces.

1 answer:

mestny [16]2 years ago

8 0

3f+3=t
s=2f
21=f+s+t

21=f+(2f)+(3f+3)
21=6f+3
18=6f

3=first
6=second
12=third

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igor_vitrenko [27]

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3 years ago

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lina2011 [118]

This is how I would solve it, I would act as if there were 36 people in the class.
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3 years ago

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OleMash [197]

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Step-by-step explanation:

Given that:

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3 years ago