P=2w+2L. if the length is three times as long as the width, and the perimeter is 80 meters, what is the length and the width?

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Gió Share
Feb 9, 2018

Answer:

I tried this:

Explanation:

We can write that:

#L=3w#

into the perimeter:

#2*3w+2w=80#
#8w=80#
#w=80/8=10m#

so that:

#L=3*10=30m#

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