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The rectangle room is 2 times as long as it wide and its perimeter is 30 meters. Find the dimensions of the room.

The rectangle room is 2 times as long as it wide and its perimeter is 30 meters. Find the dimensions of the room.
asked 100k views
5 votes
The rectangle room is 2 times as long as it wide and its perimeter is 30 meters. Find the dimensions of the room.

asked
User Bobbybee
by
8.5k points

1 Answer

7 votes
Answer:
l = 10 m
w = 5 m

Steps:
Set equations:
l = 2w
30 = 2l + 2w

Substitute 2w with l in second equation to find l:
30 = 2l + 2w
30 = 2l + l
10 = l

Plug in 10 into first equation to find w:
l = 2w
10 = 2w
5 = w
answered
User Richardsun
by
8.4k points
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