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The Real Number System Quick Check

Math 8 Q1 (Pre-Algebra) / The Number System

Which of the following numbers could be used to specify how many cups of flour should be used in a bread recipe?(1 point)
Responses

4/7
Start Fraction 4 over 7 End Fraction

−3
negative 3

234
2 Start Fraction 3 over 4 End Fraction

square root of 3

1 answer

In a bread recipe, the amount of flour is typically measured in whole numbers or fractions that are positive.

Let's analyze the options:

  1. 4/7 (or \( \frac{4}{7} \)): This is a positive fraction. It is a valid measurement for cups of flour.

  2. −3: This is a negative number. Negative amounts of flour don't make sense in this context.

  3. 234: This is a positive whole number. It is a valid measurement for cups of flour.

  4. 2 \( \frac{3}{4} \): This is a mixed number that is also positive. It is a valid measurement for cups of flour.

  5. square root of 3: This is approximately 1.732, which is a positive number. It could be used as a measurement, though it is less common compared to simple fractions or whole numbers.

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

  • 4/7
  • 234
  • 2 \( \frac{3}{4} \)
  • square root of 3

Therefore, all options except −3 could potentially be used.