Practice 4.2 Ratios

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games. What is the ratio of music apps to all apps?

• 5 to 2

• 10:5

• 3:20

• 1 to 5

How many ways can you write a ratio

• 1

• 3

• 2

• 4

Use cross multiplication or 'W' method to determine if these ratios are equivalent:

2/3 = 10/15

• no

• yes

There are 44 collies and 56 poodles. Which is the correct ratio for poodles to total number of dogs?

• 156:100

• 44:100

• 56:100

• 56

Which of the following ratios are equivalent?

• 1:3 and 3:1

• 4:6 and 8:6

• 8:7 and 16:12

• 22:14 and 11:7

Which of the following is not a way to compare ratios?

• part to part

• whole to part

• whole to whole

• part to whole

What is the ratio of triangles to squares?

• 2:6

• 5:6

• 3:4

• 4:3

The ratio of dogs to cats in a pet store is 3:2. Which of the following is an equivalent ratio?

• 4:6

• 9:6

• 6:10

• 6:9

How many students can 8 teachers supervise?

• 4 Students

• 30 Students

• 104 Students

• 52 Students

What is the cost of 3 gallons?

• $35

• $8

• $25

• $5