Ken has already baked 4 pies and he can bake 1 pie with each additional cup of sugar he buys. With 31 additional cups of sugar, how many total pies can Ken bake?

Answer: 35 pies

Step-by-step explanation:

Ken can bake 1 pie with each additional cup of sugar he buys. 1 pie = 1 cup

4 + x = y

Where;

x = additional pies

y = total pies

If 1 cup = 1 pie; then 31 cups =

31 cup * 1 pie/1 cup = x

:. x = 31 pies

y = x + 4

y = 31+4 = 35