document.write( "Question 741256: I have made 60 cupcakes. 36 are chocolate and 24 are vanilla. How many more chocolate do I need to make to have 70% of the cupcakes be chocolate. Please show the proportion used.
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Algebra.Com's Answer #451927 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I have made 60 cupcakes. 36 are chocolate and 24 are vanilla. How many more chocolate do I need to make to have 70% of the cupcakes be chocolate. Please show the proportion used. \n" ); document.write( "----- \n" ); document.write( "Proportion: \n" ); document.write( "(# of chocolate)/(total # of cupcakes) = 70/100 \n" ); document.write( "------- \n" ); document.write( "(36+x)/(60+x) = 70/100 \n" ); document.write( "---- \n" ); document.write( "36*100 + 100x = 70*60 + 70x \n" ); document.write( "----- \n" ); document.write( "30x = 600 \n" ); document.write( "x = 20 (# of chocolate to add) \n" ); document.write( "============ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |