Ratios, Rates, and Proportions

Determine if the ratios are proportional.
4/5 and 15/20

• Yes

• No

Jenny drives 265 miles in 5 hours.  What is her average rate of speed in miles per hour?

• 58 mph

• 62 mph

• 66 mph

• 53 mph

Write the ratio as a fraction in simplest form: 10 drums out of 75 instruments

• 3/5

• 4/5

• 1/4

• 2/15

State the ratios of 6 days : 2 weeks : 8 days in form a : b : c .

• 3 : 7 : 4

• 2 : 7 : 4

• 3 : 7 : 5

• 6 : 14 : 8

Simplify 0.5 : 1.5 : 4.0 to the lowest term.

• 1 : 4 : 16

• 1.0 : 3.0 : 8.0

• 1 : 3 : 8

• 5 : 15 : 4

Given m : n = 9 : 5, find the value of n when m = 81

• 35

• 45

• 65

• 60

Given a : b = 3 : 10, find the value of b if a = 21.

• 70

• 40

• 50

• 60

Given x : y : z = 5 : 7 : 4 and x = 30, find the value of y.

• 32

• 42

• 52

• 62

Which is the not equivalent ratio?

• 5 : 8 and 15 : 24

• 9 : 7 and 36 : 30

• 5 : 3 and 20 : 12

• 4 : 7 and 12 : 21

Simplify 48 : 36 to the lowest term.

• 8 : 6

• 3 : 4

• 1 : 2

• 4 : 3