document.write( "Question 747600: \r
\n" ); document.write( "\n" ); document.write( " the perimeter of a rectangle is 140 cm and the ratio of its height to width is 3:4 find the area of the rectangle
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Algebra.Com's Answer #455045 by checkley79(3341)\"\" \"About 
You can put this solution on YOUR website!
P=2*3M+2*4M
\n" ); document.write( "140=6M+8M
\n" ); document.write( "140=14M
\n" ); document.write( "M=140/14
\n" ); document.write( "M=10 THIS IS THE RATIO MULTIPLIER.
\n" ); document.write( "3*10=30 FOR THE LENGTH
\n" ); document.write( "4*10=40 FOR THE WIDTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "140=2*30+2*40
\n" ); document.write( "140=60+80
\n" ); document.write( "140=140
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