Question

a rectangular room is 1.5 times as long as it is wide, and its perimeter is 40. Write an equation for the perimeter P in terms of w​

Answer 1

Answer:

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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