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anonymous

  • 5 years ago

The perimeter of a retangle is 40m. The length is 8m more than twice the width. find the demensions. what is the lenght and width please?

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  1. anonymous
    • 5 years ago
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    you know that the length is 8m more than twice the width:\[L = 8 + 2x\] and \[W = x\] The perimeter of a rectangle is:\[P = 2L + 2W\] hence,\[40 = 2(8+2x) + 2(x)\]\[40 = 16 + 4x + 2x\]\[24 = 6x\]\[x = 4\] Therefore,\[L = 8+2(4) = 16m\] and \[W=4m\]

  2. anonymous
    • 5 years ago
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    oK sO I need to to put 16 for the lenght and 4 width

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