document.write( "Question 959251: Mother and Maria worked out a deal. For every day Maria walks the family dogs she gets $1.00. For every day Maria doesn't walk the dog she gives back $1.00 back to her mother. Maria made a total of $9.00 during the month of March. How many days did Maria walk the dog in March? \n" ); document.write( "
Algebra.Com's Answer #586338 by macston(5194)![]() ![]() You can put this solution on YOUR website! w=walked; d=did not walk \n" ); document.write( "w+d=31 (31 days in March) \n" ); document.write( "d=31-w \n" ); document.write( "$1w-$1d=$9 Substitute for d \n" ); document.write( "$1w-$1(31-w)=$9 \n" ); document.write( "$1w-$31+$1w=$9 Add $31 to each side. \n" ); document.write( "$2w=$40 Divide each side by $2 \n" ); document.write( "w=20 ANSWER She walked the dog 20 days. \n" ); document.write( "CHECK: \n" ); document.write( "d=31-w=31=20=11 She did not walk the dog 11 days. \n" ); document.write( "$1w-$1d=$9 \n" ); document.write( "$1(20)-$1(11)=$9 \n" ); document.write( "$20-$11=$9 \n" ); document.write( "$9=$9 \n" ); document.write( " \n" ); document.write( " |