document.write( "Question 147450: If grade A coffee costs .95 cents a pound and grade b coffee costs .75 cents a pound, how many pounds of each grade is needed if the total cost is $50.50, and the amount of grade b that is needed is twice the amount needed for grad A plus 5 pounds? \n" ); document.write( "
Algebra.Com's Answer #107839 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .95x+.75(2x+5)=50.50 \n" ); document.write( ".95x+1.5x+3.75=50.50 \n" ); document.write( "2.45x=50.50-3.75 \n" ); document.write( "2.45x=46.75 \n" ); document.write( "x=46.75/2.45 \n" ); document.write( "19.08 lbs. of $.95 coffee is used \n" ); document.write( "2*19.08+5=43.16 lbs. of $.75 coffee is used \n" ); document.write( "proof \n" ); document.write( ".95*19.08+.75*43.16=50.50 \n" ); document.write( "18.13+32.37 \n" ); document.write( "50.50=50.50 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |