Vocabulary
A ____ is a comparison between two quantities, in which for every a units of one quantity, there are b units of another quantity.
Ratio
Write the ratio of 3 apples to 5 oranges.
3:5, 3 to 5
If a car travels 60 miles in 1 hour, what is the speed?
60 miles per hour
Are the ratios 1:2 and 2:4 equivalent? Explain.
Yes, because you multiply both the top and bottom by the same number.
How many inches are in a foot?
12 inches
A ____ compares one part of a group to the whole group.
Part-to-whole ratio
If there are 10 boys and 15 girls in a class, write the ratio of boys to girls. SIMPLIFY.
2:3, 2 to 3
A person earns $15 for 3 hours of work. What is the hourly rate?
$5 per hour
Write an equivalent ratio for 3:4.
6:8
Convert 2 liters to milliliters.
2000 milliliters
_____ express the same ratio relationship between two quantities.
Equivalent ratios
Write the ratio of 4 feet to 12 inches.
4:12 or 1:3
If a store sells 12 bottles of soda for $24, what is the price per bottle?
$2 per bottle
Find an equivalent ratio for 5:10 by multiplying both sides by 2.
10:20
How many centimeters are in a meter?
100 centimeters
Unit rate
There are 8 cats and 4 dogs. Write the ratio of dogs to total pets.
1:3
A cyclist rides 20 miles in 2 hours. What is the rate in miles per hour?
10 miles per hour
Are the ratios 4:6 and 2:3 equivalent? Explain.
Yes, because you divide the same number by the top and bottom.
Convert 3.5 pounds to ounces.
56 ounces
A _____ compares one part of the group to another part of the same group.
Part-to-part ratio
If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?
2:3
If a printer can print 300 pages in 5 minutes, what is the printing rate per minute?
60 pages per minute
If 1:5 is a ratio, what is an equivalent ratio if you multiply both sides by 3?
3:15
If a car travels 150 kilometers, how many miles is that approximately?
Approximately 93.2 miles