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Ratios/Percents
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. Roehr 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.
Board Games Money 1 25 2 50 3 75 4 100 5 125
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

If a recipe calls for 2 cups of flour for every 3 cups of sugar, how much flour is needed for 9 cups of sugar?

6 cups of flour

300

If a shirt originally costs $40 and is on sale for 25% off, what is the sale price?

$30

300
Is 3:9 equivalent to 12:45?
No.
300
What is a Value of a Ratio?
A ratio as a fraction in simplest terms.
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?
Mrs. Roehr will check Ratio Tables: 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: Markers Pens 2 3 4 6 6 9 What is the ratio of pens to markers?
3:2
400
Find the mistake in the ratio table below and fix it: Cookies Cupcakes 2 8 4 16 6 22 8 32
22 should be 24.
400
Draw an example of a Ratio Table using the ratio 2:5.
*We will check answers*
400
Juliet was listening to Pandora Radio Station. 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 2 ratio tables to determine the answer after listening to 60 minutes of songs has played.
Before Proposal ads songs ads songs 4 15 7 30 8 30 14 60 12 45 16 60 Juliet's proposal is correct.
400
All diagrams need to have __________ to let everyone know what the diagram is about.
Labels
500

Lily is biking across a state park and keeping track of her progress. She has just completed 5 miles, and her map shows she is 25% complete. How many total miles is she biking? Use an equation to justify your answer.

 

Let x represent the total miles.

Since Lily is 25% complete after biking 5 miles, we can set up the equation:

0.25x=5

To find x, divide both sides by 0.25

Total miles: 20

500
Create a ratio table for the ratio 4:9 listing 4 equivalent ratios.
4:9 8:18 12:27 16:36 20:45
500
Name the 2 diagrams we have used to solve ratio problems.
Tape Diagram Ratio Table
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

Your aunt takes you to the beach on Saturday. She drives for 1 hour at a constant speed of 60 miles per hour. After reaching the beach, she drives for another 45 minutes at a constant speed of 30 miles per hour.

Questions: a. How far did you and your aunt travel altogether?

You and your aunt traveled a total of 82.5 miles