Rates

4 videos
2 skills
How fast can a robot possum fly? What is the rate at which a hungry you can consume avocados? This tutorial helps you make sense of these fundamental questions in life.

Finding average speed or rate

VIDEO 13:15 minutes
Using the formula for finding distance we can determine Usian Bolt's average speed, or rate, when he broke the world record in 2009 in the 100m. Watch.

Solving unit rate problem

VIDEO 2:31 minutes
Jayda takes 3 hours to deliver newspapers on her route. What is the rate per hour at which she delivers the newspapers?

Solving unit price problem

VIDEO 2:01 minutes
Miranda's Maid Service charges $280 to clean 8 offices. What is the company's price for cleaning a single office?

Rate problems

PRACTICE PROBLEMS
Use rates to solve word problems. For example, Charlie can type 675 words in 9 minutes. How many words can Charlie type in 13 minutes?

Multiple rates word problem

VIDEO 6:28 minutes
Sometimes you'll need to solve for multiple parts of the equation before getting at the answer. Here we solve for average speed, but first we have to determine total distance and total time.

Rate problems 2

PRACTICE PROBLEMS