Rate Ratios and Unit Rate

What is a rate in which the second quantity in the comparison is one unit? 
Example: 
10 cm/1 minute
10 cm per minute

• proportion

• constant

• unit rate

• fraction

What is a comparison of two quantities by division? 
Example: 
12/25 or 12 to 25 or 12:25

• unit rate

• ratio

• similar figures

• term

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

How many pieces are there per ounce?

• 5 pieces

• 0.2 pieces

• 50 pieces

• 60 pieces

The spice recipe calls for 1/2 tsp of crushed red pepper flakes for every 1 and 1/4 tsp of black pepper.  If you use 3 tsp of crushed red pepper, how many teaspoons of black pepper do you need?

• 6/5 tsp black pepper

• 5/2 tsp black pepper

• 15/2 tsp black pepper

• 1 tsp black pepper

The Healey family drove 192 miles in
4.5 hours. How many miles could they drive at this rate in 3 hours?

• 64 mi

• 77 mi

• 128 mi

• 184 mi

Find each unit rate. Round your answer to the nearest hundredth:​ (a)   11 chickens lay 77 eggs _________eggs per chicken

• 7

• 22

• 30

• 10

Jared rides his bicycle 6 miles in 3/5 of an hour. At this rate, how many miles could he ride in 3 hours?

• 18 miles

• 30 miles

• 12 miles

• 36 miles

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When guests come, she makes 96 fluid ounces of coffee. How many grams of coffee beans does Diana use when she has visitors?

Mathematical Equivalence

ON

irections: Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

7 penguins for $126.00 ________ each

• $18

• $24

• $4

• $10