SOLUTION: if breadth of room is one fourth of its and the perimeter of the room is 20m.find lenght and breath

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Question 928866: if breadth of room is one fourth of its and the perimeter of the room is 20m.find lenght and breath
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .



2L + 2w = 20m

L + w = 10m

L+%2B+L%2F4+=+10} |Multiplying thru by 4 so as all denominators = 1

.....

4L + L = 40

5L = 40

L = 8m   and w = 2m 8%2F4

And...checking

Sum = 10m