Ratios
Determine whether the ratios are equivalent.
2 : 3 and 4 : 9
No
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag.
12 red marbles; 4:3
9 blue marbles
Find the missing value(s) in the ratio table.
|Burgers | 3 | | 9 |
|Hot Dogs| 5 |10| |
|Burgers | 3 | 6 | 9 |
|Hot Dogs| 5 |10| 15|
Write a unit rate for the situation.
$100 for every 5 guests
$20 per guest
Determine whether the ratios are equivalent.
24 : 100 and 6 : 25
Yes
A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag.
6 red marbles; 2 for every 5
15 blue marbles
Find the missing value(s) in the ratio table.
|Adults | 2 | 1 | |18|
|Children|14| |21| |
|Adults | 2 | 1 | 3 |18|
|Children|14| 7 |21|126|
Write a unit rate for the situation.
880 calories in 8 servings
110 calories per serving
Fill in the blank so that the ratios are equivalent.
3 : 9 and 6 : ___
18
There are 8 more dogs than cats in the pet store. The ratio of cats to dogs is 5:7. How many cats and how many dogs in the pet store?
20 cats, 28 dogs
$60
Decide whether the rates are equivalent.
126 points in 3 games
210 points in 5 games
equivalent
You are downloading songs to your tablet. The ratio of pop songs to rock songs is 5:4. You download 40 pop songs. How many rock songs do you download?
32 rock songs
Seven out of every 8 students surveyed own a bike. The difference between the number of students who own a bike and those who do not is 72. How many students were surveyed?
96 students
A printer prints 28 photos in 8 minutes.
a. How many minutes does it take to print 21 more photos?
6 minutes
There are 12 boys and 10 girls in your gym class. If 6 boys joined the class, how many girls would need to join for the ratio of boys to girls to remain the same?
5 girls
The ratio of three numbers is 4 : 3 : 1. The sum of the numbers is 64.
What is the greatest number?
32