document.write( "Question 60772: If Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. How will I find the cost of a chocolate bar and the cost of a pack of gum \n" ); document.write( "
Algebra.Com's Answer #41738 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
If Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake\r\n" );
document.write( "bought two chocolate bars and four packs of gum and paid $2.00. How will I find\r\n" );
document.write( "the cost of a chocolate bar and the cost of a pack of gum.\r\n" );
document.write( "\r\n" );
document.write( "Let the cost of a chocolate bar be C¢.\r\n" );
document.write( "Then the cost of three chocolate bars was 3C¢.\r\n" );
document.write( "The cost of two chocolate bars was 2C¢.\r\n" );
document.write( "\r\n" );
document.write( "Let the cost of a pack of gum be G¢.\r\n" );
document.write( "Then the cost of four packs of gum was 4G¢. \r\n" );
document.write( "\r\n" );
document.write( ">>...Sally bought three chocolate bars and a pack of gum and paid $1.75...<<\r\n" );
document.write( "\r\n" );
document.write( "Translation:\r\n" );
document.write( "\r\n" );
document.write( "The cost of three chocolate bars plus the cost \r\n" );
document.write( "of a pack of gum was 175¢.\r\n" );
document.write( "\r\n" );
document.write( "                   3C + G = 175\r\n" );
document.write( "\r\n" );
document.write( ">>...Jake bought two chocolate bars and four \r\n" );
document.write( "packs of gum and paid $2.00...<<\r\n" );
document.write( "\r\n" );
document.write( "Translation:\r\n" );
document.write( "\r\n" );
document.write( "The cost of two chocolate bars plus the cost \r\n" );
document.write( "of four packs of gum was 200¢.\r\n" );
document.write( "\r\n" );
document.write( "                 2C + 4G = 200\r\n" );
document.write( "\r\n" );
document.write( "So we have this system of equations:\r\n" );
document.write( "\r\n" );
document.write( "                 3C +  G = 175\r\n" );
document.write( "                 2C + 4G = 200\r\n" );
document.write( "\r\n" );
document.write( "Can you solve that system?  Solve the first \r\n" );
document.write( "for G, then substitute in the second to find \r\n" );
document.write( "C, then substitute that in the first to find \r\n" );
document.write( "G.  If you can't do that, then post again \r\n" );
document.write( "asking how to do that.\r\n" );
document.write( "\r\n" );
document.write( "Answer:  A chocolate bar costs 50¢,\r\n" );
document.write( "         A pack of gum costs 25¢.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );