SOLUTION: Hello, My question is: A rectangle is three times as long as it is wide and has an area of 48 square units. What is the length in units of the rectangle? Thanks for your help

Algebra ->  Rectangles -> SOLUTION: Hello, My question is: A rectangle is three times as long as it is wide and has an area of 48 square units. What is the length in units of the rectangle? Thanks for your help      Log On


   



Question 630290: Hello,
My question is: A rectangle is three times as long as it is wide and has an area of 48 square units. What is the length in units of the rectangle?
Thanks for your help.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
A rectangle is three times as long as it is widehighlight%28w%29
A+=+l%2Aw+=+48
+3w%2Aw+=+48 Note: l = 3w
w%5E2+=+16
w = 4 (throwing out the negative solution for unit measure
w = 4 units and w = 12 units 3%2A4
and...
4%2A12+=+48