Ratio Basics
What is a ratio that compares 4 apples to 6 oranges?
4:6 or 2:3
Complete the ratio: 2:3 = ___:9
6:9
If a museum has 988 visitors in 4 hours, how many visitors per hour?
247 visitors/hour
In Kiaya’s bike ride, she rode 10 km in 1.5 hours and 30 km in 2 hours. What was her rate?
15 km/hour
If you buy 2 packs of gum for $4, what’s the unit price per pack?
$2 per pack
Morgan won 7 blue ribbons and 4 red ribbons. What is the ratio of red to blue?
4:7
Which two teams have the same win/loss ratio?
Lightning 14–7
Wolves 15–5
Thunder 15–3
Eagles 12–6
Lightning & Eagles (2:1)
Ms. Patel drives 165 miles in 3 hours. How many miles in 7 hours?
385 miles
On a graph, if the points (1,3), (2,6), (3,9), and (4,12) form a straight line through the origin, what does this show?
Equivalent ratios / constant rate
A teacher needs to subdue the noise in class — if 24 kids are talking and 6 quiet down each minute, how many minutes to calm the class?
4 minutes
Write “8 pencils to 12 erasers” in simplest form.
2:3
If 3 cups of juice need 6 cups of water, how many cups of water for 5 cups of juice?
10 cups
Pablo uses 13.5 cups of flour for 6 batches. How many cups per batch?
2.25 cups
FREE POINTS
A store sells 6 pencils for $3. What is the cost of 10 pencils?
$5
If there are 24 children and 16 adults, what is the ratio of children to adults?
3:2
Jayson uses 0.5 cups of kernels for 16 cups of popcorn. How many cups of popcorn for 0.75 cups of kernels?
24 cups
Melinda earns $48 for every 3 lawns. How much for 9 lawns?
$144
What does it mean when the points on a graph form a straight line?
The relationship is proportional
A car travels 300 miles on 10 gallons of gas. What’s the miles per gallon?
30 mpg
A bag has 9 red, 6 green, and 3 blue marbles. Write the ratio of red to total marbles.
9:18 or 1:2
Fill in the missing value to make equivalent ratios: 9:12 = 27:___
36
A runner travels 420 miles in 7 hours. What’s the unit rate?
60 miles/hour
If 2 hours = 40 miles, 4 hours = 80 miles, and 6 hours = 120 miles, what pattern do you notice?
Rate is 20 miles/hour (constant rate)
At a pet shelter, the ratio of cats to dogs is 12:8. Write two equivalent ratios.
6:4 and 3:2