# What is 9% of 50?

Jun 8, 2018

4.5%

#### Explanation:

Use the proportion method to solve these:

$\frac{\text{part"/"whole"="percent}}{100}$

You want to solve for what part of 50 9% is:

$\frac{\text{part}}{50} = \frac{9}{100}$

cross multiply:

$100 \cdot \text{part} = 9 \cdot 50$

$100 \cdot \text{part} = 450$

$\text{part} = \frac{450}{100}$

$\text{part} = 4.5$