SOLUTION: A table is rectangular and its length is twice its width. Find the dimensions of the table if it occupies 50 ft2 of floor space.

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Question 1197207: A table is rectangular and its length is twice its width. Find the dimensions of the table if it occupies 50 ft2 of floor space.
Answer by MathLover1(20849) About Me  (Show Source):
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let the length be L and the width W
if the length is twice its width, we have
L=2W .......eq.1
if the table occupies 50ft%5E2 of floor space, then
L%2AW=50ft%5E2..........eq.2
substitute L from eq.1
2W%2AW=50ft%5E2
W%5E2=50ft%5E2%2F2
W%5E2=25ft%5E2
W=sqrt%2825ft%5E2%29
W=5ft
go to
L=2W .......eq.1, substitute W
L=2%2A5ft
L=10ft

answer:
the table is +10ft by 5ft