Neil has 3 partially full cans of white paint cans. They contain 1/3 gallon, 1/5 gallon, and 1/2 gallon of paint. About how much paint does neil have in all ?

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%