Ratios
A ratio is a ___________ between two or more numbers.
Comparison
For every 4 hot dogs, 5 sodas are sold. What is the ratio of sodas to hot dogs sold?
5 to 4
2/3 and 4/6
Yes scaling up by a factor of 2. 2x2=4 and 3x2=6
What value of x makes these ratios equivalent?
x:6 = 6:9
What is 4
What is the greatest common factor of 12 and 18?
Write 11 limes to 6 lemons as a ratio in 3 ways.
11:6, 11/6, 11 to 6
There are 4 cups of lemonade for every 9 cups of soda. What is the ratio of lemonade to total beverages?
4/13
1/6 and 2/7
Not Proportional Using a scale factor of 2, 1x2= 2 6x2= 12 (not equivalent to 7)
What value of x makes these ratios equivalent?
x/12 = 9/36
What is 3
If five scoops of ice cream costs $10.00, how much is is then for one scoop?
What is $2.00?
To find an equivalent ratio you _________ or ________ both numbers in a ratio by the same thing.
multiply; divide
There are 3 pineapples and 5 bananas. What is the ratio of bananas to total fruit?
5:8
6/8 and 9/12
Yes 6/8= 3/4 9/12= 3/4
What value of x makes these ratios equivalent?
x/6 = 8/12
What is 4
Bus A arrives every 10 minutes and Bus B arrives every 25 minutes. How many minutes until both busses arrive at the same time?
50 minutes
What are the three types of ratios?
Part-to-Whole, Whole-to-Part, and Part-to-Part
What are unit rates?
Rates that have a denominator of 1.
5/10 and 4/8
yes 5/10 = 1/2 4/8= 1/2
What value of x makes these ratios equivalent?
6/10 = 18/x
What is 30
How do you simplify fractions?
Divide the numerator and the denominator by the same number.
What two operations will produce equivalent ratios?
A. Adding
B. Subtracting
C. Multiplying
D. Dividing
What is C, D Multiplying and Dividing
Write 3 equivalent ratios.
Answers will vary, must be confirmed by opposing player (if playing against someone)
9/20 and 3/10
Not proportional, 20 scales down by 2 to 10, but 9 divided by 2 is not 3.
What value of x makes these ratios equivalent?
3:8 = 15:x
What is 40.
One case of cookies contains 12 cookies. Which of the following lists the ordered pairs (cases, number of cookies) for 1, 2, 3, and 4 cases of cookies?
A. (1,12),(2,24),(3,36),(4,48)
B. (12,1),(24,2),(36,3),(48,4)
C. (1,24),(2,12),(4,36),(3,48)
A - (1,12),(2,24),(3,36),(4,48)