document.write( "Question 1153785: a rectangle has an area of 84 square feet. the width is x and the length is x+5. find the dimension of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #776065 by math_helper(2461) $\"\"$ $\"About$

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document.write( "Method 1:
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document.write( "Look for factors of 84 that have a difference of 5:\r
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document.write( "84 =
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document.write( "4*21
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document.write( "6*14
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document.write( "7*12   <--- width is 7, length is 12\r
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document.write( "Method 2:
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document.write( "Solve algebraically.
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document.write( "// Note that method 1 is basically the same as factoring this expression\r
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document.write( "  -->  x = 7 (width) and x + 5 = 12 (length)\r
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