Unit Rate
Proportional Tables
Proportional Graphs
Proportional Equations
Percent
100
Iron Man can defeat 42 villains in 6 hours. How many villains is he defeating each hour?
He defeats 7 villains per hour.
100
Is the table proportional? Explain.
Yes, it has the same unit rate of $2.65.
100
Is the graph proportional?
No, it does not start at the origin (0,0).
100
Elliot earns $25 per hour at his job.
Which equation represents his earnings?
A) y=25x+50
B) y=50x+25
C) y=50x
D) y=25x
D) y=25x
Elliot is earning money at a constant rate which makes this a proportional relationship ($ per hour).
y=rx is the format so since r=25 (D) is the correct equation.
100
What is the sale price for an item regularly $65.50 with a 15% discount?
The sales price is $55.67.
200
It is $39.96 for 4 pizzas. How much is it per pizza?
It cost $9.99 for 1 pizza
200
Is the table proportional? Explain.
No, they do not have the same unit rate.
200
Is the graph proportional? Explain.
Yes, it has a straight line that starts at the origin (0,0).
200
Write an equation to represent the proportional graph.
y=2x
200
You spend $24 at Denny's. You leave a 18% tip. What is the total amount you pay?
You would pay $28.32
300
A sloth can move 1/2 foot in 1/4 of an hour. How many feet can the sloth go per hour?
The sloth can go 2 feet per hour.
300
Is the table proportional, explain.
Yes, because it has a constant rate of $4.35.
300
What is the constant of proportionality (r) for the following proportional graph?
r=20
$20 per ticket
300
The equation y=3x represent the graph. What does the 3 represent in the situation?
$3 per pound
300
You are buying a new pair of shoes that normally cost $70. The shoes are on sale for 25% off. If the sales tax is 7%, what is the total cost of the purchase?
The total cost will be $56.18
400
For 2/3 of a serving you need 1/2 cup of sugar . How much sugar is needed for 1 serving?
You need 3/4 cup of sugar for 1 serving
400
Do the set of ordered pairs form a proportional relationship?
(2, 6.5) (5, 16.25) (8, 26) (11, 35.75)
Yes, the constant rate is 3.25
400
What is the constant of proportionality (r) for the graph and what does it mean?
r=0.25
$0.25 per newspaper
400
Write an equation for the proportional table.
y=65x
400
You and some friends go out to eat dinner. Your group orders 3 burgers, 5 tots, and 4 drinks.
Burgers are $4.25 each
Tots are $2.00 each
Drinks are $1.25 each
You plan to leave a 20% tip. What is the total you will pay?
$33.30
Food total: $27.75
Tip: $5.55