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## Another Problem 1

### Question:

A recipe for pasta noodles calls for 3 large eggs (3/4 cup), 2 cups of flour, 2 teaspoons of salt and 1 tablespoon of olive oil. This makes 4 servings of pasta noodles. Convert this recipe to one that would make 10 servings.

### Solution: 1.875 cups of eggs, 5 cups flour, 5 teaspoons of salt and 2.5 tablespoons of oil Sketch:

Building ratios for number of servings to each ingredient gives:

```servings : eggs =  4 : .75
servings : flour = 4 : 2
servings : salt =  4 : 2
servings : oil =   4 : 1
```

To find the amount of eggs for 10 servings we solve the proportion

4 : .75 = 10 : x,

which gives x = 1.875 cups of eggs.

The other ingredients are done the same way, giving: 5 cups flour, 5 teaspoons of salt and 2.5 tablespoons of oil.

Next Try It Out Problem.

Developed by
Shodor
in cooperation with the Department of Chemistry,
The University of North Carolina at Chapel Hill