document.write( "Question 720311: X+y=275
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document.write( "X*.1+y*.25=51.50\r
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document.write( "Help? \n" );
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Algebra.Com's Answer #441785 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! X+Y=275 MULTIPLY BY -.1 & ADD. \n" ); document.write( ".1X+.25Y=51.50 \n" ); document.write( "-.1X-.1Y=-27.50 \n" ); document.write( "------------------ \n" ); document.write( ".15Y=24 \n" ); document.write( "Y=24/.15 \n" ); document.write( "Y=160 ANS. \n" ); document.write( "X+160=275 \n" ); document.write( "X=275-160 \n" ); document.write( "X=115 ANS. \n" ); document.write( "PROOF: \n" ); document.write( ".1*115+.25*160=51.50 \n" ); document.write( "11.50+40=51.50 \n" ); document.write( "51.50=51.50 \n" ); document.write( " |