document.write( "Question 1131748: During a fundraiser, you will be trying to sell three types of candy. Chocolate bars are $3 each, nutty bars are $2.50 each, and caramel chocolate bars cost $4 each. You sell a total of 1,000 bars and collect $3,225. The number of caramel chocolate bars sold was 100 less than twice the number chocolate bars. Find the number of each type of candy bar that was sold
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document.write( " Please help me with setting up 3 equations\r
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Algebra.Com's Answer #748411 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! During a fundraiser, you will be trying to sell three types of candy. \n" ); document.write( "a,b,c; chocolate, nutty, caramel Choc \n" ); document.write( ": \n" ); document.write( " Chocolate bars are $3 each, nutty bars are $2.50 each, and caramel chocolate bars cost $4 each. \n" ); document.write( " You sell a total of 1,000 bars and collect $3,225. \n" ); document.write( "a + b + c = 1000 \n" ); document.write( "and \n" ); document.write( "3a + 2.5b + 4c = 3225 \n" ); document.write( ": \n" ); document.write( " The number of caramel chocolate bars sold was 100 less than twice the number chocolate bars. \n" ); document.write( "c = 2a - 100 \n" ); document.write( "or \n" ); document.write( "2a - c = 100 \n" ); document.write( ": \n" ); document.write( " Find the number of each type of candy bar that was sold. \n" ); document.write( ": \n" ); document.write( "Use the first two equations to eliminate b \n" ); document.write( "multiply the 2nd equation by 2, multiply the first equation by 5 \n" ); document.write( "6a + 5b + 8c = 6450 \n" ); document.write( "5a + 5b + 5c = 5000 \n" ); document.write( "-------------------------subtraction eliminates b \n" ); document.write( "a + 0 + 3c = 1450 \n" ); document.write( ": \n" ); document.write( "multiply the 3rd equation by 3, pair with the above equation \n" ); document.write( "6a -3c = 300 \n" ); document.write( "a + 3c = 1450 \n" ); document.write( "----------------adding eliminates c, find a \n" ); document.write( "7a + 0 = 1750 \n" ); document.write( "a = 1750/7 \n" ); document.write( "a = 250 Chocolates sold \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "I'll let you find b and c, check your solutions in all three equations\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |