Complex Fractions
Scale Factor
Proportional Relationships
Constant of Proportionality
Vocabulary
100
Solve:
18/(3/4)
72/3 or 24
100
Find the scale factor from the smaller image to the larger image
Scale Factor = 2
100
Is the graph proportional? Explain.
Yes, it has a straight line that starts at the origin.
100
What is the constant of proportionality?
65
100
What vocabulary word does the image show?
Scale Factor
200
A sloth can move 1/2 a foot in 1/4 of an hour. How fast can the sloth go per hour?
The sloth can go 2 feet per hour.
200
The image below shows a scaled drawing of a patio area. If the scale factor is 1 inch : 3 feet, what is the actual length and width of the patio?
Length = 6 feet
Width = 21 feet
200
Is the table proportional? How do you know?
YES; all multiply by 4 when going from y to x
200
What is the constant of proportionality?
Stacey hikes 12 miles in 3 hours and 20 miles in 5 hours.
4 miles per hour
200
What vocabulary word does the image show?
Constant of proportionality
300
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
300
The scale on a map is 1 cm : 25 ft. The distance between 2 parks on the map is 4.5 cm. What is the actual distance in feet between the 2 parks?
112.5 feet
300
What does the point represent in the graph?
5 tickets cost $40
300
Write an equation to represent the proportional graph. REMEMBER: Y = KX
c = 2s
300
When asked to find something like MILES PER HOUR or COST PER POUND you are calculating the ________________________________________?
UNIT RATE
400
True or False
The ratio of 5:1/7 has a unit rate of 35
FALSE
400
Below is a scale drawing of the side of a ramp at a skateboard park. The scale from the drawing to the actual ramp is 2 cm to 12 in. What is the area of the actual ramp? *Hint: find the actual dimensions first
Area = 288 in2
400
Is the table proportional or not?
NOT PROPORTIONAL
400
Write an equation for the proportional table
**Remember
k = y -: x
c = 1.5p
400
When a fraction contains a fraction in the numerator, denominator, or both is known as a ______________________________.
Complex Fraction
500
True or False
The ratio 3 ¼ : 1 ½ has a unit rate of
2 2/3
FALSE
500
126 inches by 72 inches
500
Calculate the miles for 15 minutes?
1,125 miles
500
Write an equation from the graph below
Y = 2/3 X
500
When comparing two quantities and thier ratios remain constant, they are known to have a what kind of relationship?
Proportional Relationship