Ratio, Rate, Proportions

Which is NOT a way to write a ratio?

• 3/5

• 3.5

• 3:5

• 3 to 5

Mr. Vieira made his famous guacamole for himself, Mr. Kye, Mrs. Smith, Ms. Kennedy, Mrs. Goldsmith, Mrs. Anjos, Ms. Stem, and Ms. Adams. His recipe calls for a ratio of 3 avocadoes to 1 lime. How many avocados and limes will he need to make sure all 8 teachers get the same amount?

• ummm...3 avocados and 1 lime??

• 16 avocados and 6 limes

• 24 avocados and 8 limes

• 48 avocados and 12 limes

Equivalent ratios are also called

I need 200g of flour to make 8 pancakes. How much flour will I need to make 16 pancakes?

• 200g

• 4000g

• 400g

• 2000g

Mr. Vieira's car gets 28 miles per gallon. He has 4 gallons left in his tank. How many more more miles can he drive until he runs out of gas?

• 96

• 43

• 72

• 112

A unit rate is a ratio in which the second quantity is 1.

• True

• False

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

I paid $15.00 for 6 gallons of gasoline.
What was the price PER gallon?

• $0.40

• $9.00

• $2.50

• $0.90

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

What is the ratio of shaded squares to not shaded squares?

• 10:5

• 10:6

• 6:10

• 10:18