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Translate to a percent equation or percent proportion and then solve to find the unknown number. 8.4 is $20 \%$ of what number?

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Chapter 7

Percent

Section 2

Solving Percent Problems Using Percent Equations and Proportions

03:12

Translate to a percent equ…

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00:33

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Write the percent equation…

01:28

Use the percent proportion…

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Solve the problem using a …

01:04

$80 \%$ of what number is …

00:23

Identify the unknown amoun…

00:24

Solve each percent problem…

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Solve the percent problem.…

00:44

to start maybe writing this as a percent equation. 8.4 IHS 20%. Uh, what number? Now we need to converter percent into a decimal. To do that, we're dividing by 100 which was her desolate place to the left to places. So now we have 8.4 equals 0.2 times x, get expert itself. We need to divide both sides of our equation by 0.2 8.4. Divided by 2.2 is 42. This is our solution.

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