Question

problem 8: spiral review
mentally evaluate the quantity.
15 is what percent of 30?

Explanation:

Step1: Set up percentage formula

Let $p$ = the percentage. The formula is $\frac{15}{30} = \frac{p}{100}$

Step2: Simplify the left fraction

$\frac{15}{30} = 0.5$

Step3: Solve for $p$

$p = 0.5 \times 100$

Answer:

50%