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babystar16

  • 3 years ago

the length of a rectangle is 5 more than twice the width. the perminter is 130 in. what is the area?

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  1. robert2
    • 3 years ago
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    Let length be L. Let width by W. L = 2W + 5 -----(1) 2L + 2W = 130 L + W = 65 ------(2) Sub. (1) into (2) (2W + 5) + W = 65 3W + 5 = 65 3W = 60 W = 20 L = 2(20) + 5 = 45 Hence Area = 45 * 20 = 900

  2. babystar16
    • 3 years ago
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    so the area is 900?????

  3. robert2
    • 3 years ago
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    yes

  4. babystar16
    • 3 years ago
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    thank u

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