Understanding Ratios
This is a relationship between two numbers showing how many times the first number contains the second.
What is a Ratio?
This is an equation that states that two ratios are equal.
What is a Proportion?
A speed of 60 miles per hour is known as this type of rate.
What is a Unit Rate?
The first step to solving a proportion is to do this with the cross-products.
What is set them to Equal? OR ___ = ____
If a car travels at a speed of 50 mph, how far can it travel in 2 hours?
What is 100 Miles?
The ratio of boys to girls in a class is 3:4. If there are 12 boys, how many girls are there?
What is 16?
If 4 pencils cost $1.00, how many pencils can be bought with $5.00?
If you read 45 pages in 1 hour, what is your reading rate in pages per minute?
What is 0.75 pages per minute?
Solve the proportion: 4/9 = x/18.
A store sells 3 cans of soup for $5. What is the cost of 9 cans?
What is $15?
If a recipe requires a ratio of 2 cups of flour to 3 cups of sugar, I need 9 cups of sugar and X cups of flour.
What is 6 cups?
If a map scale is 1 inch = 10 miles, how many miles are represented by 5 inches?
What is 50 miles?
A car travels 300 miles on 10 gallons of gas. What is its fuel efficiency?
What is 30 miles per gallon?
If 7/x = 49/63, what is the value of x?
What is x = 9?
If you can type 40 words per minute, how many words can you type in 15 minutes?
What is 600 words?
This term describes a ratio that compares two quantities measured in different units.
What is Rate?
Find the value of x in the proportion 5/x = 9/18.
What is 10?
This term describes the comparison of different quantities measured in the same unit.
What is x if 2x/10 = 3/5?
What is x = 3?
In a 24-hour period, if you sleep 1/3 of the time, how many hours do you sleep?
What is 8 hours?
A team wins 8 games for every 5 they lose. What is their win to total games played ratio?
What is 8:13?
In a proportion, these are the terms that are cross-multiplied to solve it.
What is Cross Products or Cross Multiply?
A bicycle tire rotates 720 times in 12 minutes. What is the rate of rotation in rotations per minute?
What is 60 rotations per minute?
Solve for x in the proportion: 15/x = 9/12.
What is X = 20?
If a 12 oz. bottle of shampoo lasts 3 months, how long will a 48 oz. bottle last?
What is 12 months?