document.write( "Question 1016083: To create a chocolate blend, chocolate in two concentrations, 56% cocoa and 28% cocoa, are combined together. If 9 ounces of the 56% chocolate is used, how many ounces of the 28% chocolate must be used to obtain a 40% chocolate blend?
\n" ); document.write( "If the answer is not an integer, enter it as an exact decimal.
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #632452 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "F=amount of 56%; T=amount of 28%
\n" ); document.write( ".
\n" ); document.write( "0.56F+0.28T=0.40(T+F)
\n" ); document.write( "0.56(9oz)+0.28T=0.40(T+9oz)
\n" ); document.write( "5.04oz+0.28T=0.40T+3.6oz
\n" ); document.write( "1.44+0.28T=0.40T
\n" ); document.write( "1.44=0.12T
\n" ); document.write( "12=T
\n" ); document.write( ".
\n" ); document.write( "ANSWER: 12 ounces of 28% cocoa should be used.
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( ".
\n" ); document.write( "0.56F+0.28T=0.40(T+F)
\n" ); document.write( "0.56(9oz)+0.28(12oz)=0.40(12oz+9oz)
\n" ); document.write( "5.04oz+3.36oz=0.40(21oz)
\n" ); document.write( "8.4oz=8.4oz
\n" ); document.write( ".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );