1. Let’s Do a Little Review!

2. Which ratio does not belong with the other three?
Explain your reasoning.
𝟒 𝟏𝟎
𝟐 𝟓
𝟑 𝟓
𝟔 𝟏𝟓

3. Proportionality
The ratio of red tiles to green tiles is 2:3. Which picture illustrates this relationship? C. A. B. D.

4. No, this is NOT a proportional relationship. Yes, this is a
Problem 1:
Problem 2:
On the first day, you download 5 songs and pay $2.25. The next day you down load 4 songs and pay $2.00.
On the first day, you walk 4 miles and burn 300 calories. The next day, you walk 3 miles and burn 225 calories.
Is this a proportional relationship? Write a proportion to support your answer.
Is this a proportional relationship? Write a proportion to support your answer.
No, this is NOT a proportional relationship.
Yes, this is a
proportional relationship.

5. You read the first 20 pages of a book in 25 minutes.
You read 36 pages in 45 minutes.
Is the number of pages read proportional to your time?

6. Talk Time! Complete each ratio so that each ratio is proportional.
𝟐 = 𝟖 𝟔 = 𝟏𝟐 𝟓 = 𝟏𝟓

7. Prove which proportions make x equivalent to 9.
You try!
Prove which proportions make x equivalent to 9.
3 9 = 𝑥 27 A.
2 𝑥 = B.
= 9 𝑥 C.
36 9 = 12 𝑥 D.
90 𝑥 = E.
𝑥 1 = 20 2 F.

8. Exit Ticket
Stephanie and Katie are having a disagreement. When they went for a run, Stephanie ran 3 miles in 30 minutes. Based on this, Stephanie says she can run 2 miles in 15 minutes. But Katie says Stephanie can run 2 miles in 20 minutes. Who do you agree with?