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Every number can be factored into prime factors. Prime factors are the factors that are prime numbers. Prime numbers are the numbers that can only be divided by 1 and itself. For example, 3 is a prime number, because it can only be divided by 1 and itself. 6 on the other hand is not a…
Multiplication Multiplication is when you multiply two or more numbers together. The numbers that are being multiplied are called factors. The number that is the result of multiplication is called product. In multiplication . or x signs are used to multiply one number by another. The words that may be used in multiplication word problems are (quantity) times (quantity), to…
Math has four basic operations – addition, subtraction, multiplication and division. Addition‘s sign is + and it is worded as “plus”. You can say 2 plus 3, when you’re adding 2 and 3 together, and it is written as 2+3. It is used when two or more quantities are being combined. Subtraction‘s sign is – and it worded as…
Are you ready for SAT Math problems on ratios, proportions, percentages and rates? If you need to review the basics first, check out my previous post for that. Otherwise let’s do some SAT Math example problems. Example Problem 1 A county repairs 5 miles of public roads every month. How long will it be…
SAT Math has a few word problems that involve ratios, proportions and percentages. Understanding this topic well and being able to apply it to real life problems for in SAT Math will get you well on your way to doing successfully on SAT Math. What is a ratio? A ratio is a relationship between the…
The term electromagnetic radiation consists of two words, electromagnetic (electron+magnetic) and radiation. So actually, it’s a three-word term. Let’s break it down by the definitions for each word and put it in simple English. Let’s first figure out the word radiation. Radiation comes from the word radiate and it is an action of radiating. So…
SAT Math has at least one question (but good chance more than that) on setting up and solving a system of linear inequalities. This article walks you through solving a system of linear inequalities. A system of two or more linear inequalities is made up of two linear inequalities that cross somewhere on the X-Y…
What is a linear inequality? Think of a linear equation, see the article here, but instead of an equal sign, you have > (more than), < (less than), ≥ (more or equal to) or ≤ (less than or equal to) sign. The best way to show what inequality is and what it means is to…
You will encounter problems on SAT Math where you will have to set up a system of linear equations and/or inequalities in order to solve the problem. While the previous two articles walk you through solving a system of linear equations, and solving a system of inequalities, this article will show you how to set…
SAT Math has at least one question (but good chance more than that) on setting up and solving a system of linear equations. This article walks you through solving a system of linear equations. A system of two or more linear equations is made up of two linear equations that cross somewhere on the X-Y…