 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$$640. a First, find 10%10% of their total sales. b Now find 3%3% of their total sales. Leave your answer to two decimal places. c Hence, find the total commission they made this week. Write your answer to two decimal places. Medium Approx 2 minutes Sign up to try all questions A telephone marketer earns a 13%13% commission on their sales each week. In one week, their sales amounted to \970$$970.

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

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

Outcomes

6.RP.A.3

Use ratio and rate reasoning to solve real-world and mathematical problems, e.g. By reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.

6.RP.A.3.C

Find a percent of a quantity as a rate per 100 (e.g. 30% Of a quantity means 30/100 times the quantity); solve problems involving finding the whole given a part and the percent.