Posted by Please help on Thursday, September 15, 2011 at 8:53pm.
The perimeter of a pool table is 30 ft. The table is twice as long as it is wide. What is the length of the pool table?

Math  Ms. Sue, Thursday, September 15, 2011 at 8:55pm
P = 2(L + W)
Half of 30 is 15.
Take it from there.

Math  dakota, Thursday, September 15, 2011 at 8:59pm
perimeter is adding up all sides so x equals the width and 2x equals the length. x+x+2x+2x=30. so 6x=30, divide 30 by 6= 5, so x=5 which is the width and 2x=10 which is the length.

Math  Lily, Thursday, September 15, 2011 at 9:01pm
I don't get what l and w would be

Math  Ms. Sue, Thursday, September 15, 2011 at 9:09pm
P = 2(L + W)
30 = 2 (2W + W)
30 = 4W + 2W
30 = 6W
30/6 = W
5 = W
Now find the length.
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