Ratios
Unit Rate
Rates
Miscellaneous
Proportion Tables
100
In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes.
What is 2/5 or 4/10
100
Neo read 126 pages of a book in 18 minutes. How many pages did he read in 1 minute?
7 pages per minute
100
5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand.
What is 36?
100
Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?
6 mi/hr
100
Guadalupe has been hired by her neighbors to babysit their children on Friday night. She is paid $8 per hour. Is her pay proportional to the hours she worked babysitting? How do you know?
Yes! Guadalupe's pay is proportional to the hours she worked babysitting because for every 1 hour, Guadalupe earned $8!
200
Write a unit rate for this situation: 310 heartbeats per 5 minutes
62 heartbeats/minute
200
The science materials cost $65.70 to do the experiment. If 9 students participated in the experiment, what was the unit cost per student?
$7.30
200
Angel can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles.
What is 80 min.?
200
Jose made $600 in two weeks. Find the unit rate.
(Hint: How much money did he earn in one week?)
$300/week
200
Are the ounces proportional to the cups? How do you know?
Yes! The ounces are proportional to the cups. When you divide the ounces by cup, you get 8 every single time!
300
The recipe calls for 2 eggs for every 8 cups of flour. How many eggs are needed with 40 cups of flour?
10 eggs
300
The toys cost $69.95 for 5 models. What is the unit rate for each model toy?
$13.99 per model toy
300
Diego used 6 black tiles and 12 white tiles for a pattern. What is the ratio of black tiles to white tiles.
1:2 or 6:12
300
Apples sell 4 for $2.40. How much do 6 apples cost?
$3.60
300
Is Y (Snowfall) proportional to X (Time)? How do you know?
No, the snowfall in inches is not proportional to the time. When you divide the snowfall by the time, you get a different unit rate.
10 : 2 = 10/2 = 5 U.R.
12 : 6 = 12/6 = 2 U.R.
400
There are 40 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
12 white rabbits
400
A factory can produce mousetraps at a rate of 1500 traps in 3 hours. What is the unit rate per hour?
500 traps per hour
400
30 buses can carry 1500 people. What is the number of people that can be carried by 5 buses.
250 people
400
Manuel spent $2.00 for 20 pieces of gum. Sofia spent $1.50 for 10 pieces of gum. Who got the better deal and why?
Manuel got the better deal. He got one piece for $0.10 and Sofia spent $0.15 for one piece.
400
Is the cost proportional to the number of days? How do you know?
Yes! The cost is proportional to the number of days! The unit rate remains the same throughout the whole table!
500
There are 75 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
45 mice
500
Yamileth earned $45 babysitting. If she babysat for 6 hours, what was her rate per hour?
$7.50 per hour
500
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates that 8 trucks can carry.
320 crates
500
Malcolm can type 225 words in 3 minutes. How many words can he type in 10 minutes?
750 words
500
