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3.06 Proportional reasoning with percents

Interactive practice questions

A salesperson earns a $13%$13% commission on their sales each week. In one week, their sales amounted to $\$640$$640.

a

First, find $10%$10% of their total sales.

b

Now find $3%$3% of their total sales. Leave your answer to two decimal places.

c

Hence, find the total commission they made this week. Write your answer to two decimal places.

Medium
2min

A telephone marketer earns a $13%$13% commission on their sales each week. In one week, their sales amounted to $\$970$$970.

Medium
2min

On Monday, Derek had a full tank of $40$40 Liters gasoline. During the week Derek used $55%$55% of the gasoline.

Medium
1min

We want to find $45%$45% of $5$5 hours.

Medium
1min
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Outcomes

6.RP.3

Use ratio and rate reasoning to solve real-world (with a context) and mathematical (void of context) problems, using strategies such as reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations involving unit rate problems.

6.RP.3.c

Find a percent of a quantity as a rate per 100. Solve problems involving finding the whole given a part and the percent.

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