Calculate the percentage change and the required ratio.
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tỷ số và tỷ lệ 2in1
- What does the ratio of atoms in a water molecule (H2O) represent? How are ratios used in demographics?
- Give an example. How can ratios and proportions be used in problems involving population growth or decay?
- Set up equations based on the initial and final ratios and the amount of water added.
- Describe the difference between absolute and relative change. If a quantity is increased by 25%, what is the new quantity as a ratio of the original quantity?
- Explain how percentage increase relates to ratios. If the ratio of successful to unsuccessful attempts is 7 2, what is the percentage of successful attempts?
- How does the ratio of radii affect the ratio of circumferences? The ratio of the radii of two spheres is 3 4. What is the ratio of their surface areas?
- Calculate the sale price as a percentage of the original and then form the ratio.
- What does an aspect ratio of 16 9 mean for an image? How are ratios used in art and design?
- Explain the steps to solve this type of ratio problem. Two numbers are in the ratio 5 7. If their sum is 36, find the numbers.
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