ratio and proportions solve with answer key
21 + 28 = 49 Answer: 49 students Problem 3: A recipe calls for 2 cups of sugar for every 5 cups of flour. How much sugar is needed for 15 cups of flour? Solution: Set up the proportion: \(\frac{2}{5} = \frac{x}{15}\) Cross-multiplied: \(5x = 2 \times