if leo gains 10 pounds , he will weigh 50 % more than his sister kendra . currently their combined weight is 140 pounds . what is leo ' s current weight ?
"l + k = 140 and so k = 140 - l l + 10 = 1.5 k = 1.5 ( 140 - l ) 2.5 l = 200 l = 80 the answer is a ."
divide(subtract(multiply(140, divide(add(const_100, 50), const_100)), 10), add(divide(add(const_100, 50), const_100), const_1))