document.write( "Question 90655: 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. Find the cost of a chocolate bar and the cost of a pack of gum \n" ); document.write( "
Algebra.Com's Answer #65779 by checkley75(3666) ![]() You can put this solution on YOUR website! 3C+G=175 OR G=175-3C \n" ); document.write( "2C+4G=200 NOW SUBSTITIUTE (175-3C) FOR G IN THIS EQUATION & SOLVE FOR C. \n" ); document.write( "2C+4(175-3C)=200 \n" ); document.write( "2C+700-12C=200 \n" ); document.write( "-10C=200-700 \n" ); document.write( "-10C=-500 \n" ); document.write( "C=-500/-10 \n" ); document.write( "C=50 COST OF THE CHOCOLATE BAR. \n" ); document.write( "3*50+G=175 \n" ); document.write( "150+G=175 \n" ); document.write( "G=175-150\ \n" ); document.write( "G=25 COST OF GUM. \n" ); document.write( "PROOF \n" ); document.write( "2*50+4*25=200 \n" ); document.write( "100+100=200 \n" ); document.write( "200=200 \n" ); document.write( " |