Show:
Ratios
Unit Rate
Proportional or Not?
Solving Proportions
Fraction Proportions
(answers in proper fraction)
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 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/2 = 9/6
What is 3
200
Ramon 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. x/6 = 8/12
What is 4
300
Henry 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 5/10 and 4/8 proportional?
Yes proportional, cross products equal: 5 x 8 = 40, 10 x 4 = 40
400
Solve for x. 6/10 = 18/x
What is 30
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) constant multiplier or divider 2) equivalent fractions
500
What is a unit rate?
a ratio where the denominator is a 1
500
12/20 and 3/10
Not proportional, not equivalent fractions: 12/20=6/10 which does not equal 3/10
500
Solve for x. 3/8 = 15/x
What is 40.
500
Eddy texts 60 words in 4 2/3 minutes, then he texts how many words in one half of a minute?
What is 6 3/7 words