3.05 Unit rates
Tricia reads 20 pages of her book in 2 hours. State the unit rate of pages per hour.
A car travels 200\text{ mi} in 4 hours.
Complete the following table of values:
| Time taken (hours) | 4 | 2 | 1 |
|---|---|---|---|
| Distance traveled (miles) | 200 |
Find the speed of the car in miles per hour.
A tap fills up a 240 \text{ L} tub in 4 hours.
State the compound unit that measures the rate of water flow.
Find the rate of water flow of the tap.
A toy manufacturer makes 720 toys in 9 hours.
State the compound unit that measures the rate of toy manufacturing.
Find the rate at which the toys are being made.
Justin earns \$420 in 6 hours. Find Justin's hourly rate.
Tina burns 640 calories by jogging 8 \text{ km}. Find the rate at which Tina burns calories per kilometer.
Luke writes 900 words in 20 minutes. State Luke's writing speed in words per minute.
An animator uses 12 frames for every 0.5 seconds of an animation. Find the frame rate of the animation in frames per second (fps).
A three episode TV series had a total run time of 72 minutes. Find the rate of run time per episode.
Avril is running from John in a game of tag. Avril runs 30 \text{ yd} every 5 seconds and John runs 21 \text{ yd} every 3 seconds.
Who is faster? Explain your answer.
A bus travels at a speed of 80\text{ km/hr}. How far does the bus travel in 5 hours?
Iain earns \$22 per hour working as a performer. If Iain works for 20 hours a week, determine his weekly earnings.
Lisa is trying to save money so she deposits \$3.20 into her bank account for every 8 coffees she purchases. How much does Lisa deposit for each cup of coffee?
It requires approximately 8\text{ mL} of polyethylene to create 20 plastic bags.
Find the rate of polyethylene used per plastic bag.
How much polyethylene would be required to create 5 plastic bags?
Adam really likes apples and eats 4 per day.
Find the number of apples that Adam eats in one week.
If Adam buys 44 apples, how many days will that last him?
Tina counts 26 heart beats over a 20-second interval. Find Tina's heart rate in beats per minute (bpm).
A cyclist travels 70 yards per 10 seconds. Find the speed of the cyclist in yards per minute.
A worm takes 15 seconds to travel 20\text{ cm}.
How long does it take for the worm to travel 1 meter?
Find the rate of the worm's time spent per meter distance traveled.