Ratios and Unit Rates

What is a ratio?

• Numbers

• A comparision of two things.

• I am not sure

• All positive whole numbers

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

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

• 6:4

• 4:6

• 1:3

• 10:16

Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5
• 1:3
• 3:11
• 3:10

What is the ratio of triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

• A

• B

• C

• D

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

$279 for 9 concert tickets. Find the cost per ticket.

• $31

• $39

• $2,511

• $34

You can buy 36 cookies for $4. What is the unit rate (in cookies per dollar)?

• 4 cookies per dollar
• 6 cookies per dollar
• 9 cookies per dollar
• 1/9 dollars per cookie