document.write( "Question 30978: Coffee Company blends coffee type A worth $0.93 per pound with coffee type B worth $1.20 per pound to get 30 pounds of a coffee blen worth $1.02 per pound. How many pounds of each type of coffee does the company use? \n" ); document.write( "
Algebra.Com's Answer #17690 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Let the mixture for $0.93 be x \n" ); document.write( "Let the mixture for $1.2 be y \n" ); document.write( "x+y=30 \n" ); document.write( "and y=30-x (subsitution) \n" ); document.write( "0.93x+1.2y=1.02(30) \n" ); document.write( "0.93x+1.2(30-x)=30.6 \n" ); document.write( "0.93x-1.2x=30.6-36 \n" ); document.write( "-0.27x=-5.4 \n" ); document.write( "x=20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y=30-20 \n" ); document.write( "y=10 \n" ); document.write( "HEnce, the mixture for $0.93 is 20pounds and the mixture for $1.2 is 10 pounds. \n" ); document.write( "Paul. \n" ); document.write( " |