document.write( "Question 953189: The length of a rectangle is 4 cm more than 3 times its width. if the area of the rectangle is 15 sq cm, find the width whats the work \n" ); document.write( "
Algebra.Com's Answer #582149 by MathTherapy(10552)\"\" \"About 
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The length of a rectangle is 4 cm more than 3 times its width. if the area of the rectangle is 15 sq cm, find the width whats the work
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Let width be W
\n" ); document.write( "Then length = 3W + 4
\n" ); document.write( "With area being 15 sq cm, we get: W(3W + 4) = 15
\n" ); document.write( "\"3W%5E2+%2B+4W+=+15\"
\n" ); document.write( "\"3W%5E2+%2B+4W+-+15+=+0\"
\n" ); document.write( "\"3W%5E2+-+5W+%2B+9W+-+15+=+0\"
\n" ); document.write( "\"W%283W+-+5%29+%2B+3%283W+-+5%29+=+0\"
\n" ); document.write( "3W - 5 = 0 OR W + 3 = 0
\n" ); document.write( "3W = 5 OR W = - 3 (ignore)
\n" ); document.write( "Width, or \"highlight_green%28W+=+5%2F3%29\", or \"highlight_green%281%261%2F3%29\" cm \n" ); document.write( "
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