Question

Which of the following numbers could be used to specify how many cups of flour should be used in a bread recipe?
options:

4 over 7

2 and 3 over 4

−3

square root of 3

Answer 1

To determine which of the numbers could logically specify how many cups of flour to use in a bread recipe, we need to consider that the measurement of flour must be a non-negative number.

Let's evaluate the options:

1. **4 over 7**: This is a positive fraction (approximately 0.57), so it is a valid measurement for cups of flour.

2. **2 and 3 over 4**: This is equal to \(2 + \frac{3}{4} = 2.75\), which is also a positive number, making it a valid measurement.

3. **−3**: This is a negative number, which cannot be used to specify a quantity of flour.

4. **Square root of 3**: This is approximately 1.732, a positive number, so it is also a valid measurement.

Based on this analysis, the numbers that could be used to specify how many cups of flour should be used in a bread recipe are:

- **4 over 7**
- **2 and 3 over 4**
- **Square root of 3**

The only option that is not valid is **−3**.