Unit Rate
Better Buy
Word Problems
What's the Rate?
Rates or Percents?
100
If Mimi drives 50 miles in 2 hours, what is her speed unit rate?
25 miles per hour
100
TRIPLE POINTS!!!
Which is the better deal $20 for 5 t-shirts or $24 for 8 t-shirts?
8 for $24
100
Anna earns $12 in 3 hours. How much does she make in 5 hours?
$20
100
A vehicle traveled at a speed of 54 km per hour for 3 hours. Find the distance traveled.
162 km
100
B. 18
200
If James types 120 words per 3 minutes, what is his unit rate of typing?
40 wpm
200
Which is the better buy: one slice of pizza for $3.75 or 8 slices of pizza for $18. Prove your answer!
8 slices ($2.25 per slice)
200
B. 671
200
DAILY DOUBLE!
Susan jogged 9 m in 2 s, and then she ran 21 m in 3 s. What is Susan's average speed?
6 m/s
200
B. 3
300
What is a unit rate?
A unit rate compares a quantity to 1 unit of another quantity.
300
DAILY DOUBLE!!!
Which is the better buy: 8 mints for $1.84 or 13 mints for $3?
8 mints 0.23 vs. 0.231
300
Ian buys 2.5 pounds of meat for $3.25 a pound. How much does he pay?
$8.13
300
A train moved at a speed of 95 mph for 2 hours. It then slowed down and traveled another 136 miles for the next 2 hours. Find the total number of miles the train traveled.
326 miles
300
A. 30
400
Take 100 points from another team and add it to your total score!
If you can jump 24 times in 6 minutes, how many jumps can you do in 2 1/2 minutes?
10 jumps
400
Which is the best buy: 14 cans for $4.48 at Walmart, 6 cans for $1.74 at Kmart, or 15 cans for $4.65 at Target?
6 cans at Kmart because each can is 0.29
Walmart 0.32, Target 0.31
400
Bethany is on a treasure hunt and travels 45 miles per hour as she drives. She has to go 630 miles to get from point A to point B. How long does it take her?
14 hours
400
Is this a unit rate? Why or why not?
Justin's car wheels make 80 revolutions every 5 minutes.
no
400
C. 20
500
If you can drive 320 miles on 16 gallons of gas, make a chart for how many miles you can drive on 1, 2, 3, 4, and 5 gallons.
20 -1, 40-2, 60 -3, 80 - 4, 100-5
500
Contractor Bob tells Mr. Allen the cost of refinishing his basement is $103,049. Mr. Allen's basement is 1800 square feet. Contractor Jim says he can do the job, just without the bathroom, for $102,268. The bathrooms is 150 sq. feet. If it's ok not to finish the bathroom which contractor has the best rate per square foot?
Bob $57 per sq ft
(Jim $62 per sq ft)
500
Jacob's car is leaking oil at a rate of 0.2 pints per hour. At this rate, how much oil will he lose in a day?
4.8 pints
500
What is the difference between a ratio and a rate?
ratio: same units in numerator and denominator
rate: different units in numerator and denominator
500
B. 32