Solving Problems with Ratios and Rates
6th Grade · Math · 40 min· Ccss.math.content.6.rp.a.3
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Learning Objective
I can 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.
- 1
A double number line shows how two quantities change together, such as the relationship between pounds of avocados and their cost.
- 2
If 5 pounds of avocados cost $9, the cost for one pound can be found by dividing $9 by 5, which equals $1.80.
- 3
When using double number lines, the ratio of weeks to trains was 1:9, meaning for every week, Irene can build 9 trains.
