A baker made 5 pounds of icing. He used 4/9 of icing to decorate cakes. How much of icing is left over A. 1 pound
B. 1 5/9
C. 1 2/3
D. 2 7/9

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%