Ratios
What are the three different ways to write a ratio?
#:#, # to #, #/#
If Mimi drives 50 miles in 2 hours, what is her rate (speed per hour)?
25 miles per hour
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
D= 35 miles
r= 7 mph
t=
5 hours
If there are 7 boys and 10 girls in a classroom, what is the ratio of boys to girls? Write the ratio in 3 different ways
7:10, 7 to 10, 7/10
If James types 120 words per 3 minutes, what is his 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?
8 slices of pizza for $18 (each slice costs $2.25)
Ramon scored 20 points in 4 games. How many points did he score per game?
5 points per game
Distance =
rate = 50 mph
time= 3 hours
150 miles
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
What is a unit rate?
A rate where the bottom number is 1
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 $.25 per mint
If Henry reads 8 pages in 6 minutes, then how many pages does he read in 60 minutes?
80 pages
Distance = 45 miles
r=
t= 3 hours
15 mph
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 you can jump 24 times in 6 minutes, how many jumps can you do in 2 minutes?
4 jumps per 1 minute ------> 8 jumps in 2 minutes
If Julia texts 60 words in 4 minutes, then how many minutes does it take her to text 180 words?
12 minutes
D = 300 miles
r= 60 miles per hour
t=
5 hours
Fill in the Ratio Table: 2:3 4:6 6:9 __:12 12:__ 20:__ __:60
8:12, 12:18, 20:30, 40:60
If you can drive 320 miles on 16 gallons of gas, how far can you drive on one gallon of gas
20 miles per 1 gallon
Which gives you better gas mileage? Prius: 720 miles on 15 gallons of gas OR Yaris: 752 miles on 16 gallons?
Prius because 48 miles per gallon is more than 47 miles per gallon.
If it takes Amy 15 hours to study for 2 tests, how many tests can she study for in 45 hours?
6 tests
Distance = 450 miles
r=45 miles per hour
t=
10 hours