DA Algebra 1-1 Name______
Ratio and Proportion Notes
A ratio is a ______of two numbers by ______.
A proportion is an ______that states that two______(or fractions)
are ______.
In order to solve a ______, you must ______-______.
Solve each proportion.
1. = 2. = 3. =
4. - = 5. - = 6. - =
7. - = - 8. - = - 9. - = -
10. = 11. = - 12. = -
13. = 14. = 15. =
16. = 17. = 18. =
19. = -4 20. = 7 21. 8 =
Write a proportion and solve. When necessary, round to the nearest hundredth.
22. You are riding your skateboard. It takes you 28 minutes to go 8 miles. If you continue
traveling at the same rate, how long will it take you to go 15 miles?
Proportion ______
Answer ______
23. Suppose you traveled 84 miles in 1.5 hours. Moving at the same speed, how many miles
would you cover in 3.25 hours?
Proportion ______
Answer ______
24. A canary’s heart beats 135 times in 12 seconds. How many times does its heart beat in 50
seconds?
Proportion ______
Answer ______
25. Your car averages 36 miles for every 2 gallons on the highway. How many gallons would you go on 9 gallons?
Proportion ______
Answer ______
26. You ride your bike for 21 minutes and go 5 miles. How far can you ride in 35 minutes?
Proportion ______
Answer ______
27. Three packages of blueberries cost $5.00. How much will 7 packages of blueberries cost?
Proportion ______
Answer ______
28. An elephant’s heart rate is 112 beats in 4 minutes. How long will it take for an elephant’s heart to beat 1000 times?
Proportion ______
Answer ______
29. Human finger nails grow and average of 3 mm per month. How long will it take the human finger nail to grow 20 mm?
Proportion ______
Answer ______