Math Ratios and Rates

Animals in the zoo:
Elephants - 12
Giraffes - 8
Lions - 9
Seals - 10
Otters - 16
Using the information above to write a ratio.
~~ lions to elephants

• 9:12
• 12:9
• 9:55
• 8:12

Write a ratio:
Days in May to days in a year

• 365 to 31
• 30 to 365
• 31 to 365
• 31 to 360

Write the following ratio two different ways:
10 to 7

• 10:7, 10⁄7
• 7:10, 10⁄7
• 10:7, 7⁄10

A 6-ounce bag of raisins costs $2.46. An 8-ounce bag of raisins costs $3.20. Which is the better deal?

• 6-ounce bag
• both
• 8-ounce bag
• none

Write three equivalent ratios to compare the following:
8 triangles to 12 circles

• 2:3, 4:6, 6:9
• 2:3, 4:8, 3:12
• 5:6, 7:8, 1:1

Offspring of guinea pigs in a farm:
Black - 12
White - 15
Red - 7
Identify the ratio of total number of offspring to number of white off spring

• 15:34
• 15:19
• 19:15
• 34:15

Hair color of boys:
Black - 4
Brown - 7
Blond - 9
Identify the ratio of number of boys with black hair to total number

• 4:16
• 4:20
• 16:4
• 20:4

Bob earns $36.00 for 6 hours of yard work. Sam earns $24.00 for 3 hours of yard work. Who has the better hourly rate of pay?

• Sam
• Bob
• both
• none