Proportional Relationships I
Proportional Relationships II
Percent of Change
Percent Increase/Decrease
Misc.
100
Does the table represent a proportional relationship or not? Be able to explain your answer.
Not Proportional, when dividing y/x they do not all equal the same constant of proportionality.
100
The ordered pair on a graph of a proportional relationship is (5, 15). What is the constant of proportionality?
3
100
What is the percent of change from 42 to 91?
117% increase
100
The original price of a pair of shorts a is $35. There is a sale for 30% off, what is the new price of the shorts?
$24.50
100
Peter sells shoes. On Monday he sold 15 shoes in 5 hours. On Tuesday he sold 18 shoes in 6 hours. How many shoes does Peter sell in an hour?
3 shoes per hour
200
Does the table represent a proportional relationship? Be able to explain your answer.
Yes, all equal the same constant of proportionality.
200
Write an equation that shows the proportional relationship.
y =12x
200
Rhythm Time sells music online. Last year, its customers downloaded a total of 984,570 songs. This year, they downloaded 1,083,027 songs. What is the percent of increase in annual downloads?
10% increase
200
In a video store, a DVD that sells for $15 is marked 10% off. What is the new price after discount?
$13.50
200
If Mr. Chambers can buy 5 bags of dog treats for $6.30, what is the price of 1 bag?
$1.26
300
Does the graph represent a proportional relationship? Be able to explain your answer.
Yes, it goes through the origin and is a linear line.
300
How much would it cost for 12 adults to go to the amusement park?
$900
300
Aliya had 6 good friends at the end of 7th grade. At the end of 8th grade, she had 9 good friends. Find the percent of change.
50% increase
300
A grocery store has a 60% markup on a can of soup. The can of soup costs the store $1.50. What is the selling price for the can of soup?
$2.40
300
To buy a car, Jessica burrowed $15,000 for 3 years at an annual simple interest rate of 9%. How much interest will she pay?
$4,050
400
What is the constant of proportionality?
45
400
The graph above represents how many laps Luke can run in minutes. What does the ordered pair (0.5,1) represent in the situation?
Luke can run 1 lap in 1/2 of a minute.
400
Kameron wants to buy a shirt that originally cost $50. It is on sale, and the new price is $24. Find the percent of change of the price of the shirt.
52% decrease
400
Mrs. Stoltenow spent $205 at Target. If the sales tax is 6%, what was the total amount she paid?
$217.30
400
To buy a car, Jessica burrowed $15,000 for 3 years at an annual simple interest rate of 9%. How much will she pay TOTAL?
$19,050
500
Write an equation that represents the relationship.
y=5x
500
Find the missing values of the table if the table represents a proportional relationship.
x= 4
y= 20
500
Elijah started the year by running 7 laps around the school each morning. Yesterday, he ran 4 laps. What is the percent decrease of the number of laps Elijah ran?
43% decrease
500
The Kerwoods went out to eat. If the bill was $58 and they gave their server a 15% tip, how much did they pay all together?
$66.70
500
A movie theater has reduced movie ticket prices for the early afternoon show. A group of 4 students go to the show and pay $26. At this rate, how much would 30 students pay to see a movie?
$195