document.write( "Question 794766: A girl is half her mothers age..the father is 5 years olfer than the mother..when we add all theit ages it gives us 100...how old is the mother , girl and the father \n" ); document.write( "
Algebra.Com's Answer #480733 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Mother's age = x \n" ); document.write( "Girl's age = x/2 \n" ); document.write( "Father's age = x + 5 \n" ); document.write( "x/2 + x + (x + 5) = 100 \n" ); document.write( "x/2 + x + x + 5 = 100 \n" ); document.write( "Common denominator = 2 \n" ); document.write( "x + 2x + 2x + 10 = 200 \n" ); document.write( "5x + 10 = 200 \n" ); document.write( "5x = 190 \n" ); document.write( "x = 38 \n" ); document.write( "Mother's age = 38 years old \n" ); document.write( "Girl's age = 19 years old \n" ); document.write( "Father's age = 43 years old. \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |