Question

which proportion could you use to convert 2.5 quarts to fluid ounces?
\frac{32 \text{ fluid ounces}}{1 \text{ quart}}=\frac{? \text{ fluid ounces}}{2.5 \text{ quarts}}
\frac{16 \text{ fluid ounces}}{1 \text{ quart}}=\frac{? \text{ fluid ounces}}{2.5 \text{ quarts}}
convert.
2.5 quarts = fluid ounces

Explanation:

Step1: Recall conversion factor

We know that 1 quart = 32 fluid - ounces.

Step2: Set up proportion

Let $x$ be the number of fluid - ounces in 2.5 quarts. The proportion $\frac{32\text{ fluid ounces}}{1\text{ quart}}=\frac{x\text{ fluid ounces}}{2.5\text{ quarts}}$ is the correct one to use for conversion.

Step3: Solve proportion

Cross - multiply: $1\times x=32\times2.5$.
$x = 80$.

Answer:

The correct proportion is $\frac{32\text{ fluid ounces}}{1\text{ quart}}=\frac{?\text{ fluid ounces}}{2.5\text{ quarts}}$, and 2.5 quarts = 80 fluid ounces.