Circles
Equivalent Ratios
Constants
Unit Rate
Graphing
100
What is the Radius, in inches, of a circle that has a circumference of 16π inches?
8 in
100
Are 9:10 and 27:30 equivalent ratios?
yes
100
Determine the constant of proportionality.
k=16
100
How many calories are in 1 chocolate bar?
202 calories.
100
Which statement(s) is/are true?
C,D
200
What is the diameter of a circle whose circumference is 45π meters?
45 meters
200
Name a ratio equivalent to 1:3
2:6
3:9
4:12
200
Determine if the values in the table are proportional.
No.
200
Tom's car gets 31 miles per gallon. Approximately how many miles can he drive with 8 gallons of gas?
248 miles
200
What does the point mean on this graph?
For every soda drank, 100 calories are consumed.
300
What is the approximate circumference of a circle whose radius is 5 inches? (use the π key). Round to the nearest tenth.
31.4 inches
300
Fill in the missing number:
2:5=10:__
25
300
Use the graph to identify the constant of proportionality. Write the answer as an equation.
y=3x
300
Alex earns $11.25 per hour. How much does Alex earn in a 40 hour work week?
$450
300
What point represents the unit rate on this graph?
(1,10)
400
If the area around a circular garden is 18.84 meters, what is the radius of the garden? (use 3.14)
3 meters
400
Fill in the missing number:
1:12=__:48
4
400
Is this a proportional relationship? Why or why not?
No, because it does not go through the origin.
400
Tom takes 12 minutes to read 9 pages in a book. How many pages can he read in one hour?
He can read 45 pages in one hour.
400
Which statements are true?
A, D
500
What is the exact circumference of this circle?
24π inches
500
Are 3:8 and 12:48 equivalent ratios?
no
500
What does the point on this graph represent?
For every one soda drank, 150 calories are consumed.
500
An industrial printer prints 1764 pages in 6 minutes. How many pages will it print in 4 minutes?
1176 pages
500
What point represents the unit rate?
(1,4)