document.write( "Question 328819: Christine went shopping and bought each of her nine nephews a gift, either a video costing $14.95 or a CD costing $16.88. She spent $138.41 on gifts. How many videos and CDs did she buy? \n" ); document.write( "
Algebra.Com's Answer #235665 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! v+c=9 or v=9-c \n" ); document.write( "14.95v+16.88c=138.41 \n" ); document.write( "14.95(9-c)+16.88c=138.41 \n" ); document.write( "134.55-14.95c+16.88c=138.41 \n" ); document.write( "1.93c=138.41-134.55 \n" ); document.write( "1.93c=3.86 \n" ); document.write( "c=3.86/1.93 \n" ); document.write( "c=2 cds were bought. \n" ); document.write( "v=9-2=7 video were bought. \n" ); document.write( "Proof: \n" ); document.write( "14.95*7+16.88*2=138.41 \n" ); document.write( "104.65+33.76=138.41 \n" ); document.write( "138.41=134.41\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |