Asked by lisaa

A rectangle has a perimeter of 120 cm.

Write the length of the rectangle as a function of its width.
Answered by Damon
2 L + 2 W = 120
so
L + W = 60
so
L = 60 - W
Answered by lisaa
oh yea there's a second part of it. how do i find the range and domain.

I got

domain => x=R<60
range => y=R<60
Answered by Damon
Neither can be negative !
Answered by lisaa
hmm

x=R; 0<x<60
y=R; 0<x<60

how's that
Answered by Damon
I like that better.
Answered by Keisha
Perimeter is 120
The lenght is twice its width
What is the lenght
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