document.write( "Question 21991: How would I go by solving for the correct pound? Star Cups, a specialty coffee store, creates a special mix of two coffees at two different prices: $6.42 and $7.28 per pound each. How many pounds of the $$7.28 coffee should be mixed with 7 pounds of $6.42 coffee to sell the mixture for $7.20 per pound? \n" ); document.write( "
Algebra.Com's Answer #11916 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
Let x = no pounds of $7.28 coffee
\n" ); document.write( "7 = no pounds of $6.42 coffee
\n" ); document.write( "x+7 = total no pounds of coffee at $7.20\r
\n" ); document.write( "\n" ); document.write( "7.28x + 7*6.42 = 7.20 (x+ 7)
\n" ); document.write( "7.28x + 44.94 = 7.20x + 50.40
\n" ); document.write( "7.28x + 44.94-44.94 = 7.20x + 50.40 - 44.94
\n" ); document.write( "7.28x = 7.20x + 5.46
\n" ); document.write( "7.28x - 7.20x= 5.46
\n" ); document.write( ".08x = 5.46\r
\n" ); document.write( "\n" ); document.write( "\"%28.08x%29%2F.08=+5.46%2F.08\"
\n" ); document.write( "\"x=+68.25\" pounds at $7.28
\n" ); document.write( "\"7\" pounds at $6.42
\n" ); document.write( "\"x%2B7=+75.25\" pounds at $7.20\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Strange--it usually comes out even, doesn't it! But then that's life!! It's a good idea to check it!\r
\n" ); document.write( "\n" ); document.write( "\"68.25%2A7.28+%2B+7%2A6.42+=+75.25+%2A7.20+\"
\n" ); document.write( "\"496.86+%2B+44.94+=+541.80+\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "R^2 at SCC\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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