document.write( "Question 186675: A grocer makes a natural breakfast cereal by mixing oat cereal that cost $2 per pound with dried fruit and nuts that cost $9 per pound. How many pounds of each are needed to make 60 pounds of the cereal if it will sell for $ 7 per pound and yield a prifit of $ 195 after the entire 60 pounds is sold. \n" ); document.write( "
Algebra.Com's Answer #139948 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A grocer makes a natural breakfast cereal by mixing oat cereal that cost $2 per \n" ); document.write( " pound with dried fruit and nuts that cost $9 per pound. How many pounds of each \n" ); document.write( " are needed to make 60 pounds of the cereal if it will sell for $7 per pound \n" ); document.write( " and yields a profit of $195 after the entire 60 pounds is sold. \n" ); document.write( ": \n" ); document.write( "Let x = amt of $9 stuff \n" ); document.write( "The required total is 60 lb, therefore: \n" ); document.write( "(60-x) = amt of $2 stuff \n" ); document.write( ": \n" ); document.write( "Find the original cost of the 60 lb mixture \n" ); document.write( ": \n" ); document.write( "(60*7) - 195 = $225 is his cost for 60 lb \n" ); document.write( "which is: \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "The mixture equation: \n" ); document.write( "9x + 2(60-x) = 3.75(60) \n" ); document.write( ": \n" ); document.write( "9x + 120 - 2x = 225 \n" ); document.write( ": \n" ); document.write( "9x - 2x = 225 - 120 \n" ); document.write( ": \n" ); document.write( "7x = 105 \n" ); document.write( "x = \n" ); document.write( "x = 15 lb of $9 stuff \n" ); document.write( "then \n" ); document.write( "60 - 15 = 45 lb of $2 stuff \n" ); document.write( ": \n" ); document.write( "; \n" ); document.write( "Check solution: \n" ); document.write( "9(15) + 2(45) = \n" ); document.write( "135 + 90 = 225 \n" ); document.write( ": \n" ); document.write( "60*7 = 420 - 225 = $195 profit \n" ); document.write( " \n" ); document.write( " |