Final answer:
To find out how much water is required in the bread dough recipe with a ratio of 5:3, we can set up a proportion.
Step-by-step explanation:
To find out how much water is required, we can set up a ratio using the ratio given in the question. The ratio of flour to water in bread dough is 5:3. Since the recipe calls for 2 1/2 cups of flour, we can set up the equation 5/3 = 2.5/x to find the value of x. Cross-multiplying, we get 5x = 7.5. Dividing both sides by 5, we find that x = 1.5 cups of water will be required.