document.write( "Question 823667: Please help to solve this:a rectangle has an area of 720 square feet, the ratio from length to width is 3:5. What is the length of the longest side? \n" ); document.write( "

Algebra.Com's Answer #495709 by TimothyLamb(4379) $\"\"$ $\"About$

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\n" ); document.write( "Lw = 720
\n" ); document.write( "L/w = 3/5
\n" ); document.write( "L = (3/5)w
\n" ); document.write( "---
\n" ); document.write( "Lw = 720
\n" ); document.write( "(3/5)ww = 720
\n" ); document.write( "ww = 720(5/3)
\n" ); document.write( "ww = 1200
\n" ); document.write( "w = sqrt( 1200 )
\n" ); document.write( "---
\n" ); document.write( "w = 34.641
\n" ); document.write( "L = 20.785
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "34.641 ft
\n" ); document.write( "---
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