Equations Everyone should Know

Basic, Everyday Use

The equations that you absolutely have to know, and more or less use on a daily basis are the four basic equations (functions) of algebra. These four equations are the following:



a*b=c (usually single digit multiplications of the multiplication table is sufficient for everyday life)


Below are some more equations that you could use frequently:

Average=Sum of terms/number of terms

Probability=Favorable events/Total Possible Events

Equations for General Knowledge

Pithagorean Theorem:a2+b2=c2

Newton's law:F=ma

Einstien's law: E=mC2

Fibonaccy number : Fn=Fn-1+Fn-2 (a number in a sequence where each number is the the sum of the previous two numbers)

Rule of 72 by Einstien: years to double=72/Interest rate

Simple Interest=Principal*Interest Rate*Number of Periods


(Absolute pressure of gas)(volume of gas)=(number of moles)(universal gas constant, which is R = 8.3145 J · mol-1 · K-1)(absolute temperature)

More by this Author

No comments yet.

    Sign in or sign up and post using a HubPages Network account.

    0 of 8192 characters used
    Post Comment

    No HTML is allowed in comments, but URLs will be hyperlinked. Comments are not for promoting your articles or other sites.

    Click to Rate This Article