Write a ratio for the situation in three ways, comparing the first quantity to the second quantity
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- Express the ratio as a decimal. Round to the nearest hundredth.
- Write a unit rate for the situation. Round to the nearest hundredth if necessary.
- Use the unit price to find the total price.
- Solve the proportion using cross products. Round to the nearest hundredth if necessary.
| Level 2 Chapter 5 Study Guide
Multiple Choice Identify the choice that best completes the statement or answers the question. Write a ratio for the situation in three ways, comparing the first quantity to the second quantity. ____ 1. An aquarium has 5 whales and 13 sharks.
Express the ratio as a decimal. Round to the nearest hundredth. ____ 2.
____ 3. Write in simplest form.
Write a unit rate for the situation. Round to the nearest hundredth if necessary. ____ 4. driving 140 mi in 2 h 45 min
____ 5. Population density is the number of people per unit of area. What is the population density of a state that has 1,627,260 people in 1,490 square miles? Round to the nearest whole number.
Use the unit price to find the total price. ____ 6. 28 ft2at $3.89 per square foot
____ 7. A store sells packages of pencils. Which package offers the best unit price?
____ 8. Determine which ratio forms a proportion with .
____ 9. Determine which ratio forms a proportion with .
____ 10. Determine which ratio forms a proportion with .
____ 11. Which ratios cannot form a proportion?
____ 12. During one team’s season, the ratio of the number of games the team won to the number of games the team played was 4 to 12. The team played 42 games. How many games did the team win?
____ 13. A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours?
____ 14. Solve the proportion. =
Solve the proportion using cross products. Round to the nearest hundredth if necessary. ____ 15. =
____ 16.
____ 17. Are the figures below necessarily similar? Why or why not? 
____ 18. Are the figures below similar? Why or why not?  
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