Write an equation for 1 cop of sugar is used to make 25 cookies where s equals sugar N = 25S.
- Number of cups of sugar required to make 25 cookies = 1 cup
- Number of cups of sugar required to make 1 cookie = 1/25 cup
- Number of cups of sugar required to make N cookies = N/25 cups
- We are given that S number of cups are required to make N cookies.
Therefore, S = N/25 implying that 25S = N.