document.write( "Question 718062: \r
\n" ); document.write( "\n" ); document.write( "Rectangle has perimeter of 490mm, lengths sides are the ratio 3:4, the dimensions of the rectangle?
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Algebra.Com's Answer #440742 by checkley79(3341)\"\" \"About 
You can put this solution on YOUR website!
LET THE LENGTH BE 3X & THE WIDTH BE 4X
\n" ); document.write( "P=2L+2W
\n" ); document.write( "490=2*3X+2*4X
\n" ); document.write( "490=6X+8X
\n" ); document.write( "490=14X
\n" ); document.write( "X=490/14
\n" ); document.write( "X=35
\n" ); document.write( "3*35=105 FOR THE LENGTH.
\n" ); document.write( "4*35=140 FOR THE WIDTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "490=2*105+2*140
\n" ); document.write( "490=210+280
\n" ); document.write( "490=490
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