Ratios
Equivalent Ratios
Vocabulary
Ratios with Diagrams
Review
100
There are 12 dogs for every 15 cats. What is the ratio in simplest terms?
4:5
100
What ratio is equivalent to 7:12?
14:24, 70:120
LOTS OF ANSWERS!
100
What is a ratio?
A comparison of two values.
100
Mrs. Boone loves to buy board games. For every 2 board games she buys, she spends $50. How much will 5 board games cost her? Use a ratio table to solve this problem.
Five games will cost $125.
100
There are 4 camels for every 7 elephants in the world. If there were 52 camels, how many elephants would there be? Use a tape diagram to solve.
91 elephants
200
For every 27 students, there are 3 teachers. What is the ratio in simplest terms?
9:1
200
20:50
Scale up the ratio 1 time.
Scale down the ratio 1 time.
40:100
2:5
LOTS OF ANSWERS!
200
What are Equivalent Ratios?
Ratios with the same value.
200
Meg has 2 pairs of sneakers for every 7 pairs of dress shoes. How many dress shoes will she have if she has 8 pairs of sneakers? Use a tape diagram to solve.
28 pairs of dress shoes.
200
When graphing an ordered pair (x, y), which direction do we move first?
To the right (along the x-axis).
300
Mrs. Roehr has 13 pets total, 9 of them being chickens. What is the ratio of chickens to total pets?
9:13
300
Is 3:9 equivalent to 12:45?
No.
300
How do we find equivalent ratios?
By multiplying or dividing each part of a ratio by the same number.
300
Make a Ratio Table: For every 5 apps Jeff has on his phone, he has 3 apps on his Chrome book. How many apps would he have on his Chrome book if he has 25 apps on his phone?
15 apps on his Chrome book.
300
To create an equivalent ratio, what 2 operations can we use?
Multiplication and Division
400
The following question is based on the ratio table below: 
What is the ratio of lawns to hours?
3:1
400
Find the mistake in the ratio table below and fix it: 
2 should be 1.
400
Draw an example of a Ratio Table using the ratio 2:5.
*We will check answers*
400
Juliet was listening to Pandora Radio. For every 4 minutes of ads, Pandora played 15 minutes of songs. Juliet wanted to listen to less ads and proposed to Pandora that they play 7 minutes of ads for every 30 minutes of songs.
Is Juliet's proposal correct? Use ratio tables or double number lines to determine the answer after listening to 60 minutes of songs has played.
Juliet's proposal is correct.
400
All diagrams need to have __________ to let everyone know what the diagram is about.
Labels
500
There are 15 Asian elephants for every 20 African elephants in the world. What is the ratio of Asian elephants to African elephants? Simplify.
3:4
500
Create a ratio table for the ratio 4:9 listing 4 equivalent ratios.
500
Name two of the strategies that we have used to solve ratio problems.
Tape Diagram, Ratio Table, Double Number Line, Graphs
500
This summer at camp, the ratio of boys to girls was 5:9. If there were 168 more girls at camp, how many boys were at camp? USE A TAPE DIAGRAM to justify your answer.
There were 210 boys.
500
Simplify the ratio 36:72
1:2