A recipe calls for 5 cups of flour for every 3 cups of sugar. If you want to make a batch using 15 cups of sugar, how many cups of flour do you need? The answer is _______ cups.
Answer & Analysis
Analysis
Question Analysis
The question tests the student's ability to apply proportions to real-world scenarios. It requires the student to set up and solve a proportion based on the given ratio.
Key Concept Explanation
A proportion is an equation stating that two ratios are equal. In this case, the ratio of flour to sugar is given, and the student needs to find the amount of flour corresponding to a given amount of sugar.
Step-by-step Solution
1. Set up the proportion:
2. Apply the cross-multiplication rule:
3. Simplify the left side:
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