document.write( "Question 989665: Mrs Brown is ordering a photo. The 5\" by 7\" prints cost $8 each and the 8\" by 10\" photos cost $22 each for a total of $168. If she bought 14 photos, how many of each type did she get? \n" ); document.write( "
Algebra.Com's Answer #610023 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "S=number of smaller photos; L=number of larger photos \n" ); document.write( ". \n" ); document.write( "S+L=14 \n" ); document.write( "S=14-L Use this to substitute for S. \n" ); document.write( ". \n" ); document.write( "$8S+$22L=$168 Substitute for S from above. \n" ); document.write( "$8(14-L)+$22L=$168 \n" ); document.write( "$112-$8L+$22L=$168 \n" ); document.write( "$14L=$56 \n" ); document.write( "L=4 ANSWER: She got 4 large photos. \n" ); document.write( "S=14-L=14-4=10 ANSWER 2: She got 10 small photos. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "$8S+$22L=$168 \n" ); document.write( "$8(10)+$22(4)=$168 \n" ); document.write( "$80+$88=$168 \n" ); document.write( "$168=$168 \n" ); document.write( ".\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |