SOLUTION: The length and the width of the rectangle is in the ratio 3:5. Its area is 375m^2. Find its perimeter.

Algebra ->  Rectangles -> SOLUTION: The length and the width of the rectangle is in the ratio 3:5. Its area is 375m^2. Find its perimeter.      Log On


   



Question 930547: The length and the width of the rectangle is in the ratio 3:5. Its area is 375m^2. Find its perimeter.
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
The length and the width of the rectangle is in the ratio 3:5. Its area is 375m^2. Find its perimeter.
***
let x=length
let y=width
y/x=3/5
y=3x/5
area of rectangle=length*width=375
x*y=x*3x/5=3x^2/5=375
3x^2/5=375
x^2=1875/3=625
x=√625=25
y=3*25/5=15
perimeter=2*(length+width)=2*40=80 m