SOLUTION: A rectangle has a perimeter of between 30 cm and 40 cm. The length is twice the width. What might it's dimensions be? How do you know?
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Question 511554: A rectangle has a perimeter of between 30 cm and 40 cm. The length is twice the width. What might it's dimensions be? How do you know? Answer by oberobic(2304) (Show Source):
You can put this solution on YOUR website! L = 2W
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P = 2(L+W)
P = 30
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substitute L=2W
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2(2W+W) = 30
6W = 30
W =5
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L = 2W
L = 10
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Now check for P=40
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6W = 40
W =6 2/3
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So the width is between 5 and 6 2/3.
The length is twice the width regardless of the width.
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Done.
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