Question

use the given conversion factor to convert 15 ml to tsp. 1 tsp = 5 ml 15 ml = ? tsp

Explanation:

Step1: Set up the conversion.

We know that $1$ tsp $ = 5$ mL. Let $x$ be the number of teaspoons for 15 mL. So we have the proportion $\frac{1\text{ tsp}}{5\text{ mL}}=\frac{x\text{ tsp}}{15\text{ mL}}$.

Step2: Cross - multiply and solve.

Cross - multiplying gives $5x = 15\times1$. Then $x=\frac{15}{5}=3$.

Answer:

3