document.write( "Question 908145: Tea worth ₱25.50 per pound is to be mixed
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document.write( " with tea worth ₱29.40 per pound. How many pounds of each should be used to obtain 25 pounds of a blend worth ₱27.00 per pound?
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Algebra.Com's Answer #550853 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 25*27=675 \n" ); document.write( "x+y=25, \n" ); document.write( "25.5*x+29.4*y=675 \n" ); document.write( "x=25-y \n" ); document.write( "25.5*(25-y)+29.4*y=675 \n" ); document.write( "637.5-25.5y+29.4*y=675 \n" ); document.write( "3.9*y=37.5 \n" ); document.write( "y=9.61538462 \n" ); document.write( "x=25-y \n" ); document.write( "x=15.3846154 at 25.50 and y=9.61538462 at 29.40 \n" ); document.write( "check \n" ); document.write( "15.3846154+9.61538462=25 \n" ); document.write( "25.5*x+29.4*y=675 \n" ); document.write( "25.5*15.3846154+29.4*9.61538462=675 \n" ); document.write( "392.307692+282.692308=675 \n" ); document.write( "675.0=675 \n" ); document.write( "ok \n" ); document.write( " \n" ); document.write( " |