Ratios
If 20 people like Coke and 15 people like Pepsi, what is the ratio of people who like Pepsi to people who like Coke. SIMPLIFY YOUR ANSWER!
15:20 ---SIMPLIFIED---> 3:4
If Mimi drives 50 miles in 2 hours, what is her rate (speed per hour)?
25 miles per hour
TRIPLE POINTS!!!!! Which is the better deal $20 for 5 t-shirts or $24 for 8 t-shirts?
8 t-shirts for $24 (each shirt costs $3)
Anna earns $12 in 3 hours. How much does she make in 5 hours?
She makes $4 per hour ------> $20 in 5 hours
27:9 = 18 : ________
6
If the ratio of girls to boys in a classroom is 3:5 and there are 15 boys in the classroom, how many girls are in the classroom?
There are 9 girls
If James types 120 words per 3 minutes, what is his unit rate of typing?
40 words per minute
Which is the better buy: one slice of pizza for $3.75 OR 8 slices of pizza for $18.00? (Be able to prove it)
8 slices of pizza for $18 (each slice costs $2.25)
Ethan's car is leaking oil at a rate of 0.2 pints an hour. At this rate, how much oil will he lose in a day?
4.8 pints
Is this a unit rate? Why or why not?
Justin's car wheels make 80 revolutions every 5 minutes.
No- a unit rate would have to be written as
16:1
Fill in the Ratio Table: 2:3 4:6 6:9 __:12 12:__ 20:__ __:60
8:12, 12:18, 20:30, 40:60
What is a unit rate?
A unit rate compares a quantity to ONE unit of another quantity.
DAILY DOUBLE!!!!! Which is the better buy: 8 mints for $1.84 or 13 mints for $3.00?
8 mints because $.23 per mint is lower than $.231 per mint
Ian buys 2.5 pounds of meat for $3.25 a pound. How much does he pay?
$8.13
Kayla knits 3/5 of a meter in 1/3 of an hour. What is her knitting unit rate?
1 4/5m
Zara had some US stamps and some foreign stamps. The ratio of the number of US stamps to the number of foreign stamps was 3:4. She gave away 28 foreign stamps and the ratio of the number of US stamps to foreign stamps became 9:8. How many US stamps did Zara have in the end?
She had 63 US stamps in the end.
DAILY DOUBLE!!!!! If you can jump 24 times in 6 minutes, how many jumps can you do in 2 1/2 minutes?
Ten jumps in 2 1/2 minutes
4 jumps per 1 minute ------> 8 jumps in 2 minutes----------->2 jumps per 1/2 minute
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
Henry brings his dog to the dog park,where 34 dogs were already playing with some cats. The ratio of the new number of cats to dogs at the park was 4:5. Four cats jump over the fence to escape, how many cats are left?
24 cats
Today, the age of Bob's age to Phil's age is 3:8. In 12 years, the ratio will become 7:12. How old is Bob today?
Bob is 9 years old today.
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 miles per 1 gallon 40 miles per 2 gallons 60 miles per 3 gallons 80 miles per 4 gallons 100 miles per 5 gallons
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 bathroom is 150 square feet. If it's ok not to finish the bathroom, which contractor has the best rate per square foot?
Contractor Bob (He charges about $57 per square foot while Jim charges about $62 per square foot)
At 7:30am, a bus left Town P for Town Q at an average speed of 60 km/hour. 15 minutes later, a car left Town Q and headed to Town P. The car reached Town P at 10:45 am. The bus reached Town Q at noon. What was the average speed of the car?
The car was going 90 km/h
A parking garage charges $7.00 for the first three hours. Every subsequent half hour (or any part of a half hour) costs $2.50. If Mrs. Paul parks from 3:15pm-8:20pm, how much will she owe the parking garage?
$19.50