Vocab
Define rate in your own words
A comparison of two quantities with different units
A car travels 180 miles in 3 hours.
Write this as a rate.
Find the unit rate
180 miles/3 hours
60 miles/1 hour
Which is the better buy?
Brand A: 12 oz for $3.00
Brand B: 20 oz for $4.00
Brand A
If gas costs $3.20 per gallon, how much will 12 gallons cost?
$38.40/12 gallons
Convert
5 feet to inches
60 inches
Define unit rate
A rate with a denominator of 1.
24 notebooks cost $6.
Write this as a rate.
Find the unit price
$6/24 notebooks
$0.25/1 notebook
Which store has the lower unit price?
Store A: sells 15 pencils for $3.75
Store B: sells 10 pencils for $2.00
Store A
A recipe uses 2 cups of flour for 8 servings. How many cups are needed for 20 servings?
Find the rate
Find the unit rate
3. Find the new rate
2 cups/8 servings
.25 cups/1 serving
5 cups/20 servings
3.5 yards to feet
10.5 feet
How do you find the unit rate?
Divide the rate by the bottom rate number
A runner runs 5 miles in 40 minutes.
What is the unit rate in miles per minute?
0.125 miles/minute
Sally types 150 words in 3 minutes. John types 200 words in 5 minutes. Who types faster?
Sally- 50 words/minute
A car travels 240 miles per 4 hours. How far will it travel in 7 hours?
Find the rate
Find the unit rate
3. Find the new rate
240 miles/4 hours
60 miles/1 hour
420 miles/7 hours
48 ounces to pounds
3 pounds
Which is a unit rate
12 miles in 3 hours
$4 per 1 pound
6 apples to 2 oranges
$4 per 1 pound
Miss K went for a bike ride. She drove 30 miles in 2 hours. How many miles did she go in 1 hour?
write your answer as a rate
15 miles/1 hour
The 20 oz
It costs $22 for 4 books. How much would 13 books cost?
3 meters to centimeters
300 cm
John types 376 words in 8 minutes. What is his rate per minute?
47 words/1 minute
Why do we compare rates?
Find the better deals, save money, faster times, etc.
A 10 ounce bottle of shampoo costs $5.00. What is the unit price? How much would 45 ounces cost?
$22.50/45 oz
4,500 g to kg
4.5 kg