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)\"\" \"About 
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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.
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