From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with and solve rate problems in algebra using the distance formula.
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How To: Calculate Faster Than a Calculator

How To: Find a number given Its percent

How To: Find the Percent Given Two Numbers

How To: Remember "greater than" & "less than" symbols

How To: Do long division without a calculator

How To: Find a missing side of a triangle, similar to another

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the area of a parallelogram using geometry

How To: Calculate the area of a parallelogram

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Calculate the height and volume of a pyramid

How To: Find the area of a triangle when given 2 sides & angle

How To: Solve percentages without a calculator

How To: Find how many toothpicks will be needed to form the nth figure in a sequence

How To: Quickly solve quadratic equations by factoring

How To: Get decimal forms of rational numbers

How To: Identify the numerical coefficient of a monomial

How To: Divide small numbers by big numbers

How To: Simplify fourth roots
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