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Answer:
Step-by-step explanation:
We set up the 1st equation as
l=1.5w.
And the perimeter of a rectangle is
2w+2l=25
substitute the 1st equation into the second.
2w+2(1.5w)=25
2w+3w=25
5w=25 W=5
so l=1.5(5)=7.5