Ratios and proportions
Not what you're looking for?
What are ratios and proportions?
Purchase this Solution
Solution Summary
This explains ratios and proportions.
Solution Preview
Ratios are pairs of numbers that are used to make comparisons.
A ratio compares two numbers using a fraction. Ratios can be written with different notations:
2 to 3
2:3
2/3
all have the same meaning.
Putting two numbers in a ratio gives you a sense of the relative
sizes of two numbers. For instance to know the ratio of 200 to
100 you say it is 200/100 = 2. That means 200 is twice the size of 100.
The best way to explain this is by example:
If you have a pet store with 12 cats and 18 dogs, then the ratio of cats to dogs is 12/18 = 2/3, and the ratio of dogs to cats is 18/12 = 3/2. This is, there are 3 ...
Purchase this Solution
Free BrainMass Quizzes
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Probability Quiz
Some questions on probability
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.