Writing Ratios
What is a ratio?
A ratio is a comparison of two or more things.
If a recipe calls for a ratio of 1 cup of sugar to 4 cups of flour, how much flour is needed for 2 cups of sugar?
8 cups of flour.
What is 3.5 + 2.1
5.6
0.4*0.6
0.24
What is the value of -3 + 2
-1
Write the ratio of 3 apples to 5 oranges
3 to 5
A map has a scale of 1cm:500km. If the distance on the map is 2 cm, what is the actual distance?
1000km
4.8-2.4
2.4
5.5/0.5
11
If the temperature is 5 degrees below zero, what is the temperature?
-5
If there are 4 boys and 6 girls in a class, what is the part-to-part ratio of boys to girls?
4 to 6 or 2 to 3 (simplified)
If a car travels 60 miles in 1 hour, what is the ratio of distance to time?
60 miles per hour
If you add 1.25 + 3.75, what is the sum?
5
2.3*4
9.2
What is the absolute value of -7
7
If there are 12 marbles total and 2 red marbles and 8 blue marbles. What relationships is described by the ratio to 8 to 20?
8 blue marbles to total marbles
In a class of 20 students, there are 12 girls. What is the ratio of girls to the total number of students?
12:20 or 3:5 (simplified).
7.5-3.61
3.89
7.2/0.8
9
A mountain is 300 meters above sea level and a valley is 200 meters below sea level. What is the difference in elevation?
500 meters
Provide an example of a part-to-whole ratio?
Answers will vary
A fruit basket has apples and bananas in the ratio 5:3. If there are 40 apples, how many bananas are there?
24 bananas.
6.3+4.7+2.46
13.46
1.55*4.2
6.51
If you owe $25 and paid back $10, how much do you still owe amount?
I still owe $15