Ratios
A ratio is a ___________ between two or more numbers.
Relationship or Comparison
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 a unit rate?
A ratio comparing 2 different things set over 1
Write 11 limes to 6 lemons as a ratio in 3 ways.
11:6, 11/6, 11 to 6
All ratios are fractions. True or False?
False: All fractions ARE Part-to-Whole ratios, but Part-to-Part ratios are not fractions.
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
Martha runs 3 miles in 25 minutes. How long does it take Martha to run one mile if she is at a constant speed?
8.33 minutes
Bob's Diner sold 130 milkshakes last week. 40% of the milkshakes had whipped cream on top. How many milkshakes without whipped cream were sold?
78 WITHOUT whipped topping were sold
What are unit rates?
They are rates per one unit.
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
Hy Vee is selling 12 oz of bacon for $15.99 and Baker's is selling 20 oz of bacon for $24.99. Determine the unit rate for each store and which is the better buy.
Baker's: $1.25 per oz
Hy Vee: $1.33 per oz
Baker's is the better buy.
What two operations will produce equivalent ratios?
A. Adding
B. Subtracting
C. Multiplying
D. Dividing
What is C, D Multiplying and Dividing
An High School Triathlon race consists of a 100 m swim followed by a 200 m bike ride followed by a 400 m run. The elementary school wants to run a triathlon with the same ratio of distances, but their running route will only be 200 m long. How many metres must their triathlon be?
350 m
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.
A box of chips is $13.99. If the box holds 15 bags, how much is one bag?
$0.93 per bag