SOLUTION: how do you figure a rectangle with a perimeter of 70 feet and the length-to-width ratio of 3 to 4

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Question 209710: how do you figure a rectangle with a perimeter of 70 feet and the length-to-width ratio of 3 to 4
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
Perimeter = 2*Length +2*Width =70
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but L/W=3/4,,,or L=(3/4)(W),,,,,subst
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2{(3/4)W} +2W =70
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1.5 W +2W = 70
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3.5 W =70
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W=20,,,,,,and L=(3/4)20 =15
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checking,,,2(15) +2(20) = 70,,,,ok
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