Unit rate: Which is the Better buy?

Multiple Choice

What is a unit rate?

• a comparison of two values that are the same

• a comparison of two value that are different

• two equivalent proportions

• a rate with a second quantity of 1 unit

Multiple Choice

Maria walks 12 miles in 3 hours. How many miles does she walk per hour?

• 36

• 4

• 5

• 32

Multiple Choice

A unit rate is a rate in which the unit in the denominator is:

• 100

• 1

• 10

• 1000

Multiple Choice

You score 84 points in six games. How much do you score per game?

• 14

• 13

• 12

• 11

Multiple Choice

If Anna can type 408 words in 4 minutes, how many words can she type per minute?

• 408

• 400

• 100

• 102

Multiple Choice

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza?

• $4.95 per pizza

• $5.75 per pizza

• $6.50 per pizza

• $7.25 per pizza

Multiple Choice

Which is the better buy,

paying $3.60 for 2 kg of flour,

or,

paying $8.50 for 5 kg of flour?

Remember that a better buy is a cheaper price!

• $3.60 for 2kg of flour is a better buy

• $8.50 for 5kg of flour is a better buy

Multiple Select

Which is the better buy,

paying $14.40 for 12 kg of potatoes,

or,

paying $5.50 for 5kg of potatoes?

• paying $14.40 for 12kg of potatoes is the better buy

• paying $5.50 for 5 kg of potatoes is the better buy

Multiple Choice

Which is the better buy,

paying $9.50 for 500g of cheese,

or,

paying $39 for 2kg of cheese?

• paying $9.50 for 500g of cheese is the better buy

• paying $39 for 2 kg of cheese is the better buy

Multiple Choice

Which is the best buy out of these soft drink options?

• paying $4.00 for 6x200mL cans

• paying $1.50 for 1.25 L

• paying $1.00 for a 375 mL can

Multiple Choice

A chef makes pasty using a 3:1 ratio of flour to butter.
What is the scale factor in this context?

• undefined 

• 4

• $$\frac{1}{4}$$  

• 3

Multiple Choice

How much flour will the chef need to make pastry if the ratio of flour to butter is 3:1 and he has 1.65 kg of butter?

• 3.95 kg of flour

• 5.85 kg of flour

• 4.75 kg of flour

• 4.95 kg of flour

Multiple Choice

How much butter will the chef need to make pastry if the ratio of flour to butter is 3:1 and he has 7.5 kg of flour?

• 5 kg of butter

• 22.5 kg of butter

• 2.2 kg of butter

• 2.5 kg of butter