7th Unit 3 Rates and Proportionality

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

What is the constant of proportionality for this table?

• 1/9
• 9
• 8

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14

A recipe calls for 3/4 cup of brown sugar for every 3 eggs. What is the unit rate of eggs per cup? 

• 1 cup/4 eggs
• 1 cup/3 eggs
• 3 eggs/1 cup
• 4 eggs/1 cup

Given that 1 yard is approximately 0.914 meter, 50 yards would be equivalent to approximately how many meters?

• 45.7 meters
• 49.09 meters
• 50.91 meters
• 54.7 meters

How tall am I in inches if I am 5'4"?

• 60
• 64
• 108
• 53

Mary lost 30 pounds.  Before her diet she weighed 180 pounds.  What is the percent of change?

• 17% Decrease
• 18% Decrease
• 19% Decrease
• 20% Decrease

Find the percent change.
Original amount:  16
New amount: 11

• 5%
• 31%
• .3%
• 56%

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%
• 25%
• 30%
• 20%