3. A recipe requires 3 cups of milk, but the only tool available is a household measuring cup that uses pints. How many pints of milk are needed for the recipe? Note: 1 pint = 2 cups
Answer: A
1.5 pints of milk are needed for the recipe.
To convert cups to pints, it is essential to recognize that there are 2 cups in 1 pint. Therefore, to find out how many pints are required for 3 cups of milk, one must divide 3 by 2, resulting in 1.5 pints.
A) 1.5 pints
This option is correct because dividing 3 cups by 2 cups per pint yields 1.5 pints. The calculation is straightforward: 3 cups ÷ 2 cups/pint = 1.5 pints. This answer meets the requirements of the recipe accurately.
B) 3 pints
This option is incorrect because it suggests that 3 cups of milk is equivalent to 3 pints. Since 1 pint equals 2 cups, 3 cups would only amount to 1.5 pints, not 3 pints. Thus, this option fails to reflect the correct conversion.
C) 6 pints
This option is incorrect as well. If 3 cups were mistakenly calculated as 6 pints, it would imply that each cup is equivalent to 2 pints, which contradicts the standard conversion of 1 pint equaling 2 cups. Therefore, this answer is not valid.
D) 2.5 pints
This option is also incorrect. It misrepresents the conversion by suggesting that 3 cups equate to 2.5 pints. The correct conversion, as shown, results in 1.5 pints, making this option inaccurate.
Conclusion
The correct answer is 1.5 pints, as it accurately reflects the conversion from cups to pints for the given recipe. All other options fail to represent the proper relationship between cups and pints, leading to incorrect conclusions about the amount of milk needed. Thus, option A is the only valid choice.