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dusya [7]
3 years ago
5

A 21 foot beam is to be cut into three pieces so that the second and the third piece are each 3 times the length of the first pi

ece if x represents the length of the shorter piece, find the lengths of all three pieces
Mathematics
1 answer:
mylen [45]3 years ago
6 0

x+3x+3x=21

7x=21

x=3

3, 9, 9=21

the answers are 3, 9, and 9

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