What does a scale of 1 100000 mean on a map? How are ratios used in models?
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tỷ số và tỷ lệ 2in1
- Set up the equation for the given proportionality and solve for the constant of proportionality.
- Define proportion.
- Explain how rates and concentrations are expressed using ratios.
- Describe how to solve problems involving relative speed when objects move in opposite directions. A train travels from city A to city B at a speed of 60 km/h and returns at a speed of 80 km/h. What is the ratio of the time taken for the onward journey to the time taken for the return journey?
- How can you determine the speed ratio from the distance ratio? More Ratio and Proportion Questions
- What is a reciprocal ratio? How can ratios be used to compare changes in quantities?
- Find the constant of proportionality and then use it to find the new value of y.
- How do you determine if two triangles are similar? If two triangles are similar, and the ratio of their corresponding sides is 2 3, what is the ratio of their areas?
- Explain the terms of a proportion.
- Calculate the areas and then find their ratio.
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