SOLUTION: A rectangular room is three times as long as it is wide, and its perimeter is 80 meters. Find the length of the room.

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Question 1050067: A rectangular room is three times as long as it is wide, and its perimeter is 80 meters. Find the length of the room.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .

2L + 2w = P

2L + 2w = 80m

2(3w) + 2w = 80m

8w = 80m

w = 10m  ande L = 30m 3%2A10

Checking

2L + 2w = P

20m + 60m = 80m CHECKS!