1. What is the primary purpose of using a double number line to model a ratio?
2. A recipe calls for 4 cups of sugar for every 2 batches of cookies. Following this ratio, you would need ___ cups of sugar to make 6 batches of cookies.
3. A hose fills a small pool with 90 gallons of water in 3 minutes. At this constant rate, how many gallons would be in the pool after 1 minute? The answer is ___ gallons.
4. A train travels 150 miles in 2 hours at a constant speed. Following this rate, how far will the train travel in 3 hours?
5. Maria can read 50 pages of a book in 40 minutes. If she continues reading at the same pace, she can read 100 pages in ___ minutes.
6. A car travels 180 miles on 5 gallons of gasoline. What is the car's fuel efficiency in miles per gallon? ___
7. Grocery store A sells 4 apples for 3.00 dollars. Grocery store B sells 5 apples for 3.50 dollars. Which store offers a lower price per apple?
8. A train travels 240 miles in 4 hours. A bus travels 195 miles in 3 hours. Which vehicle is traveling faster?
9. A factory machine produces 450 widgets in 30 minutes. At this rate, how many widgets does the machine produce per minute? ___
10. Printer A prints 60 pages in 5 minutes. Printer B prints 96 pages in 8 minutes. Which statement is true?