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

1 answer

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.