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Converting Unit Rates
Complex Fractions and Unit Rates
Graph Proportional Relationships
Solving Proportions
Constant Rate of Change and Slope
100
How many seconds are in 1 hour?
3600 seconds
100
Simplify. 12 / 3/5
20
100
How do you know if a graph is proportional?
It is linear and passes through the origin.
100
Define the word "Proportion"
An equation stating that two ratios or rates are equivalent.
100
Find the constant rate of change for this table: Time (hr) 0 1 2 3 Wage($) 0 9 18 27
$9/hr
200
Solve. 20 mi/hr = ______ ft/hr
105,600 ft/hr
200
Find the unit rate. 150 people for 5 classes
30 people per class
200
Determine whether the relationship between the two quantities shown in the table. Weel Account 1 125 2 150 3 175
Not proportional, The graph does not pass through the origin.
200
Solve. 44/p = 11/5
p= 20
200
Use the graph to pick two points and find the constant rate of change. Show Graph
12 pages per minute
300
solve. 16 cm/min = ______ m/hr
9.6 m/hr
300
Find the Unit Rate. Ben can type 153 words in 3 minutes. At this rate, how many words can he type in 10 minutes?
510 words
300
What are the four sections of a coordinate plane called?
Quadrants
300
Solve. 2.5/6 = h/9
h = 3.75
300
Graph the data. Find the numerical value of the slope. Number of yards 1 2 3 Numver of feet 3 6 9
the slope = 3 There are 3 feet per yard
400
The process of including units of measure as factors when you compute is called _______________
Dimensional Analysis
400
Write this percent as a fraction in simplest form. 15 3/5%
39/250
400
Determine whether the relationship between the two quantities shown in the table are proportional by graphing on a coordinat plane.
Proportional. The graph is a straight line through the origin. (Show the graph)
400
Set up a proportion and solve. For every left handed person, there are about 4 right-handed people. If there are 30 students in a class, predict the number of students who are right-handed.
24 people
400
Line RS represents a bike ramp. (Show Graph) What is the slope of the ramp?
The slope is 1/3
500
A pipe is leaking at 1.5 cups per day. About how many gallons per week is the pipe leaking?
0.66 gal/week
500
Solve. If Dinah can skate 1/2 lap in 15 seconds, how many laps can she skate in 60 seconds?
2 laps
500
Determine if this situation represents a proportional relationship. Graph on your coordinate plane. Frank and Allie purchased cell phone plans through different providers.Graph each plan to determine whose plan is proportional. Time Frank's cost($) Allie's cost($) 0 0 4.00 3 1.50 4.50 6 3.00 5.00
Frank's plan is prportional. His graph is a straight line through the origin. (Show Graph)
500
Solve. Jeremiah is saving money from a tutoring job. After the first three weeks, he saved $135. Assume the situation is proportional. Use the unit rate to write an equation relating the amount saved s to the number of weeks w worked. At this rate, how much will Jeremiah save after eight weeks?
s = 45w $360.
500
The table shows the amount of rainfall Saturday. Graph the data and find the slope. Time 1 2 3 4 Rainfall(in) 1.5 3 4.5 6
slope = 1.5inches per hour