document.write( "Question 211328: Joy is an instructional assistant in one of the college labs. She is on a very tight budget. She loves Jamaican Blue Mountain coffee, but it costs $18 a pound. She decides to blend this with regular coffee beans that costs $2.37 a pound. If she spends $14.25 on 3 pounds of coffee, how many pounds of each did she purchase?\r
\n" ); document.write( "\n" ); document.write( "Round your answer to two decimal places.\r
\n" ); document.write( "\n" ); document.write( "She purchased______pounds of Jamaican Blue Mountain Coffee.
\n" ); document.write( "She purchased______ pounds of Regular Coffee.\r
\n" ); document.write( "\n" ); document.write( "i have no idea how to do this!!!!!
\n" ); document.write( "please help!
\n" ); document.write( "

Algebra.Com's Answer #159679 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
18x+2.37(3-x)=3*14.25
\n" ); document.write( "18x+7.11-2.37x=42.75
\n" ); document.write( "15.63x=42.75-7.11
\n" ); document.write( "15.63x=35.64
\n" ); document.write( "x=35.64/15.63
\n" ); document.write( "x=2.28 pounds of the $18 coffee is used.
\n" ); document.write( "3=2.28=.72 pounds of the $2.37 coffee is used.
\n" ); document.write( "Proof:
\n" ); document.write( "18*2.28+2.37*.72=3*14.25
\n" ); document.write( "41.04+1.7=42.75
\n" ); document.write( "42.75~42.75
\n" ); document.write( "She purchased 2.28 pounds of Jamaican Blue Mountain Coffee.
\n" ); document.write( "She purchased .72 pounds of Regular Coffee.
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