A recipe for making chocolate chip cookies calls for 2 1/2 cups of sugar for a dozen cookies (12). If you want to make 30 cookies, choose a proportion that would work to tell you how many cups of sugar you should use. A: x/12 = 2.5/30
B: 2.5/12 = x/30
C: 2.5/30 = 12/x
D: 12/2.5 = x/30

B: 2.5/12 = x/30

Step-by-step explanation:

We can use ratios to help solve.  We need to keep the units in the same order.

2.5 cups sugar       x cups sugar

=

12 cookies                 30 cookies

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step-by-step explanation:

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