5
algebra

A recipe uses 2 cups of flour for every 3 cups of sugar. If you use 9 cups of sugar, how much flour?

A

3

B

6

C

4

D

9

Correct Answer: B

Choice Choice B is the correct answer.

  1. Proportion: 23=x9\frac{2}{3} = \frac{x}{9}
  2. Cross Multiply: 3x=183x = 18
  3. Divide by 3: x=6x = 6

Choice Choice C is incorrect because calculation error.

Choice Choice A is incorrect because calculation error.

Choice Choice D is incorrect because calculation error.