document.write( "Question 123412:
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document.write( "A seedman has seeds worth $0.50 per pound mixed with seeds worth $0.80 per pound. If he wishes to make a mixture of 30 lbs to sell at $0.75 per pound, how many pounds of each should he use?
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document.write( "5 lbs of $0.50
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document.write( "25 lbs of $0.80 \n" );
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Algebra.Com's Answer #90585 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! .8X+.5(30-X)=.75*30 \n" ); document.write( ".8X+15-.5X=22.5 \n" ); document.write( ".3X=22.5-15 \n" ); document.write( ".3X=7.5 \n" ); document.write( "X=7.5/.3 \n" ); document.write( "X=25 POUNDS OF $.80 MIX IS USED. \n" ); document.write( "30-25=5 POUNDS OF $.50 MIX IS USED. \n" ); document.write( "PROOF. \n" ); document.write( ".8*25+.5*5=22.5 \n" ); document.write( "20+2.5=22.5 \n" ); document.write( "22.5=22.5 \n" ); document.write( " |