A recipe calls for 5 cups of flour to make 40 cookies. How many cups of flour are needed to make 120 cookies? Set up the proportion and solve for the amount of flour. The amount of flour needed is ______ cups.
Answer & Analysis
Analysis
Question Analysis
This question tests the student's ability to set up and solve a proportion problem involving scaling a recipe.
Key Concept Explanation
Proportions are used to compare two ratios and solve for an unknown value. In this case, the ratio of cups of flour to cookies is consistent.
Step-by-step Solution
1. Set up the proportion:
2. Cross-multiply:
Click "Show Answer" to reveal the answer and analysis
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