Rates Unit Rates

Which rate is equivalent to $9 per hour?

• $27 in 3 hours

• $28 in 4 hours

• $33 in 3 hours

Kelly has 10 apps on her iPad.
5 are school apps, 2 are music apps, and 3 are games.
What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3

9 minutes to 5 miles

• Ratio

• Rate

• Unit Rate

Mrs. Edgar bought an eight pack of bottled water for $4.00.  What was the unit price for the water?

• $32.00

• $0.50

• $3.20

• $5.00

The table shows the cost of long distance calls based on the number of minutes used. Is there a constant rate of change, and if so what is it?

• Yes, 10 calls per minute

• Yes, $.10 per minute

• Yes, $.40 per minute

• Not a constant rate

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Jan ran 5 miles in 48 minutes. What was her time per mile?

• 10 min/mi

• 9.6 min/mi

• about 12 min/mi

• 9.5 min/mi

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

• $31

• $39

• $2,511

• $34

Density is the ratio of mass to volume. A 3-liter jug of honey has a mass of 4.5kg. Write the density of honey as a unit rate.

• 1 liter-jug has a mass of 13.5kg

• 1-liter jug has a mass of 1.5kg

• 1.5 liter-jug has a mass of 1kg

• not here

Find the unit rate miles per hour.

• 24 miles per hour

• 3 miles per hour

• 1 miles per hour

• 8 miles per hour