Question

you’re making desert, but your recipe needs adjustment. your oatmeal cookie recipe makes 2 dozen cookies, but you need 3 cookies. If the recipe requires 1 and 1/3 cups of sugar, 3/4 teaspoon of salt, and 1 and 1/4 cups of raisins, how much of each of these ingredients are for 3 dozen cookies? simply your answer

Answer 1

we know that

For 2 dozen cookies

we need

1 1/3 cups of sugar

3/4 teaspoon of salt

1 1/4 cups of raisins

To convert 2 dozens to 3 dozens------> multiply by 3/2

but first convert mixed number to improper fractions

1 1/3=1+1/3=4/3 ----> multiply by 3/2

(4/3)*(3/2)=2 cups of sugar

3/4*(3/2)=9/8 ----> convert to mixed number

9/8=8/8+1/8=1 1/8 teaspoon of salt

1 1/4=1+1/4=5/4

5/4*(3/2)=15/8

15/8=8/8+7/8=1 7/8 cups of raisins