document.write( "Question 908222: Tea worth 25.50 per pound is to be mixed with tea worth 29.40 per pound. How many pounds of each should be used to obtain 25 pounds of blend worth 27.00 per pound? \n" ); document.write( "
Algebra.Com's Answer #550885 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( "rounded \n" ); document.write( "x=15.4 at 25.50 and y=9.6 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( " |