Rates & Proportions
Unit Rate
Constant of proportionality
Proportions
Definition and Tables
100
What is the ratio 5 out of 10 horses in simplest form.
What is 1:2?
100
What is the unit rate for driving 132 miles in 2 hours.
What is 61 mph?
100
What is the constant of proportionality? for 4 lbs of oranges costing $4.80.
What is $1.20 per pound?
100
If 5 apples cost $2, this is how much would 25 apples cost.
What is $10?
100
IS this proportional? What is the constant? 
Yes! 5 is the constant.
200
What is the ratio 4 out of 32 in simplest form.
What is 1:8?
200
What is the unit rate for running 100 meters in 10 seconds.
What is 10 meters/sec?
200
What is the constant of proportionality for 2 lbs of grapes costing $1.99.
What is $1.00 per pound?
200
If 3 pencils cost $1, how much would 15 pencils cost.
What is $5?
200
constant of proportionality
A constant ratio or unit rate of two variable quantities. It is also called the constant of variation.
300
The speed limit is 50 miles per hour. Kyle is driving to a baseball game that starts in 2 hours. Kyle is 130 miles away from the baseball field. If Kyle drives at the speed limit, will he arrive in time?
What is no, he'll be late?
300
A car is driving 210 miles in 3 hours. How many miles can the car go in 5 hours?
What is 350 miles?
300
What is constant of proportionality for 2 lbs of turkey costing $6.98.
What is $3.49 per pound?
300
If 12 bananas cost $20, how much would 3 bananas cost?
What is $5?
300
what tells you a relationship or table is proportional?
Constant, unit rate
400
A line-painting truck is painting a line on the side of a roadway. The truck paints at a rate of 8 miles per hour. How many miles can be painted in 1/4 of an hour?
What is 2 miles?
400
A track star can run 5 km in 20 minutes. How many km can she run in 30 minutes?
What is 7.5 kilometers?
400
What is the constant of proportionality for 4 lbs of ketchup costing $5.00.
What is $1.25 per pound?
400
If 2 watermelon cost $2.50, how much would 5 watermelons cost.
What is $6.25?
400
Unit Rate
A ratio that compares a quantity to one unit of another quantity
500
Tony ran 200 yards in 40 seconds. Ana ran 150 yards in 25 seconds. Who ran faster?
Who is Tony?
500
Morgan scored 42 points in 3 games. How many points would you expect him to make in an 11-game season?
What is 154 points?
500
What is the constant of proportionality for 3.5 lbs of walnuts costing $9.99.
What is $2.85 per pound?
500
If your average speed is 36mph, how far would you travel in 6 hours?
What is 216 miles?
500
Is this proportional? What's the equation?
Yes.