document.write( "Question 935055: The length of a rectangle is 7yds
\n" ); document.write( "less than three times the width, and the area of the rectangle is 66yds^2
\n" ); document.write( " . Find the dimensions of the rectangle.
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Algebra.Com's Answer #568167 by TimothyLamb(4379)\"\" \"About 
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L = 3w - 7
\n" ); document.write( "Lw = 66
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\n" ); document.write( "Lw = 66
\n" ); document.write( "(3w - 7)w = 66
\n" ); document.write( "3ww - 7w - 66 = 0
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\n" ); document.write( "the above quadratic equation is in standard form, with a=3, b=-7 and c=-66
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\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "3 -7 -66
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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\n" ); document.write( "the quadratic has two real roots at:
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\n" ); document.write( "w = 6
\n" ); document.write( "w = -3.6666666
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\n" ); document.write( "the negative root doesn't fit the problem statement, so use the positive root:
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\n" ); document.write( "w = 6
\n" ); document.write( "L = 3w - 7
\n" ); document.write( "L = 3*6 - 7
\n" ); document.write( "L = 11
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\n" ); document.write( "answer:
\n" ); document.write( "w = 6 yds
\n" ); document.write( "L = 11 yds
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\n" ); document.write( "Solve quadratic equations with quadratic formula:
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