Arecipe calls for 1.5 cups of raisins for 18 cookies how many cups of raisins must be used for making 30 cookies

Let's subtract 18 from 30 first. That means so far we will need 1.5 cups of raisins. We have 12 cookies left. You could do it 2 ways:

1. Percentage

12/18 = x/1.5

Cross multiply

18/18 = 1

You will need 1 cup of raisins.

2. Dividing

Half of 18 = 9

1.5 divide by 2 = .75

9 divide by 3 = 3

.75 divide by 3 = .25

3 x 4 = 12

.25 x 4 = 1

1 cup of raisins

The answer will be 2.5 cups of raisins.

1.5 + 1 = 2.5 cups of raisins

Hopes this helps :)

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