Question

6.2 - the percent proportion

1. choose tools use a model to answer the question. use a proportion to check your answer.

what number is 20% of 80?
the number \boxed{} is 20% of 80.
grade 7 mfm 2022 - chapter 6 - section 6.2 - the percent proportion - activity 1 - 1b - question #9

Explanation:

Step1: Convert percent to decimal

$20\% = \frac{20}{100} = 0.2$

Step2: Calculate 20% of 80

$0.2 \times 80 = 16$

Step3: Verify with proportion

Let $x$ be the unknown number. Set up proportion:
$$\frac{x}{80} = \frac{20}{100}$$
Cross-multiply: $100x = 20 \times 80$
Solve for $x$: $x = \frac{20 \times 80}{100} = 16$

Answer:

16