Understanding Rates

Which one is NOT a rate?

• 80 km/hour

• increase from 120 km to 500 km

• 5 litres/minute

• $28/kg

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which are the most likely units for this rate: 'the cost of buying land'

• cents / m²

• $ / km²

• cents / km²

• $ / m²

Tags

CCSS.3.NF.A.3D

Which are the most likely units for this rate: 'a persons typing speed'

• words/ minute

• letters / second

• words / second

• letters / minute

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

An athletes heart beats 250 beats in 5 minutes.

This means that the average heart rate is

_______ beats per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A truck travels 560 km in 7 hours.

This means that the average speed is

_______ km per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

It costs $21.06 to buy a 5.4 m length of timber.

This means that the average length costs

_______ $ per metre.

Tags

CCSS.6.NS.B.3

There were 660 ml of rain during the month of November.

This means that the average rainfall was

_______ ml per day.

Tags

CCSS.6.RP.A.3B

In the 2000 Sydney Olympics, Cathy Freeman won Gold in the 400m race.

Her time was 49.11 seconds.

This means that her average speed was

_______ m per second (ROUND TO 1 D.P.)

Tags

CCSS.6.RP.A.3B

Noah has grown from 1.12 m at 5 years old to 1.41 m at 7 years old. His growth rate in cm per year is

• 0.29 cm / year

• 2.9 cm / year

• 29 cm / year

• -0.29 cm / year

Tags

CCSS.HSF-LE.A.1B

Kane cycles 50 km in 108 minutes. Archie finishes a 42 km cycling race in 90 minutes.

Who is the fastest cyclist?

Tags

CCSS.6.RP.A.3B