Show:
Ratios
Unit Rate
Proportional or Not?
Solving Proportions
Complex Fraction Proportions
(Give answer in Mixed Number)
100
The definition of a ratio.
What is a comparison between two numbers?
100
If Jeffrey drives 50 miles in 2 hours, what is his unit rate (speed per hour)?
What is 25 miles per hour
100
2/3 and 4/6
Yes, proportional, equivalent fractions: 2/3 = 4/6
100
Solve for x. x/6 = 6/9
What is x=4
100
Anna swims 12 miles in 2 1/2 hours. How far does she swim in 4 hours?
What is 19 1/5 miles
200
What are three ways we write a ratio
As a fraction, with a colon, and with the word "to"
200
If James types 120 words per 3 minutes, what is his rate of typing?
What is 40 words per minute
200
Are 1/6 and 2/7 proportional?
Not Proportional, not equivalent fractions: 1 /6 does not equal 2/7
200
Solve for x. x/36 = 5/9
What is x=20
200
Devonte gets 10 points in 3 1/3 games. How many does he get in 5 games?
What is 15 points
300
Write 10 limes to 6 lemons as a ratio in 3 ways.
10:6, 10/6, 10 to 6
300
If 10 bags of Hot Cheetos cost $3.50, then how much does 1 cost?
What is $0.35
300
Are 6/8 and 9/12 proportional?
Yes proportional, cross products equal: 6 x 12 = 72, and 9 x 8 = 72
300
Solve for x. 1.4/2.5 = x/25
What is x=10
300
Daniel reads 10 1/2 pages in 3/4 of an hour, then he reads 4 pages in how many minutes?
What is 1/3 of an hour?
400
Write 6 girls to 8 boys as a ratio in 3 ways.
6/8, 6:8, 6 to 8
400
Which is the better deal $20 for 5 t-shirts or $24 for 8 t-shirts
What is $24 for 8 t-shirts (rate of $3 per shirt)
400
Are these proportional: 7 inches in 9 hours; 42 inches in 54 hours
Yes
400
Solve for x. 5/2 = x - 2/4
What is x=12
400
Ms. Velastegui's students study 3 1/2 hours for 3 tests, how long do they study for 1 test?
What is 1 1/6 of an hour.
500
What are 2 ways to to see if ratio is proportional?
What is: 1) equivalent fractions 2) cross products will equal
500
What is a unit rate?
a ratio where the denominator is a 1
500
What are the 2 characteristics a graph must have in order to determine if it is Proportional?
1. Must be a straight line 2. Must start at (0,0) - Origin
500
A cell phone company charges $5 for 250 text messages. How much does the company charge for $300 text messages??
What is $6
500
Elizabeth texts 60 words in 4 2/3 minutes, then she texts how many words in one half of a minute?
What is 6 3/7 words