Ratios and Graphing Ratio Relationships

Logan swims about 2.5 laps every minute in his pool. Select the amounts to complete the equivalent ratios below. 1 minute: ​ (a)   laps 2 minutes: ​ (b)   laps 3 minutes: ​ (c)   laps 4 minutes: ​ (d)   laps

• 2.5

• 5

• 7.5

• 10

• 3.5

• 4.5

• 5.5

• 6.5

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ratio tables

A school administrator is purchasing 18 new chairs for each classroom. Select the amounts that complete the equivalent ratios below.

1 classroom: ​ (a)   new chairs

2 classrooms: ​ (b)   new chairs

3 classrooms: ​ (c)   new chairs

4 classrooms: ​ (d)   new chairs

• 18

• 36

• 54

• 72

• 27

• 45

• 63

• 81

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ratio tables

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players? 

• 10 : 3

• 10:13

• 3 : 10

• 3:13

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Luz earns $400 for 40 hours of work. Use a ratio table to determine how much she earns for 6 hours of work.

• $60.00

• $20.00

• $40.00

• $10.00

What are three ways to write a ratio for the amount of dogs compared to the number of cats.

• 7:11

• 11:7

• 11 to 7

• 11/7

• 12 to 7

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 18

• 50

There are 4 birds and 6 snakes. What is the ratio of birds to snakes?

• 6/4

• 4/6

• 1/3

• 10/16