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 solve word problems involving direct variation.
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How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

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

How To: Solve vector field integrals in calculus

How To: Calculate percent composition for chemistry

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

How To: Find a number given Its percent

How To: Find the area & perimeter of triangles & squares

How To: Find the area of triangle using fraction measurement

How To: Do long division without a calculator

How To: Divide small numbers by big numbers

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

How To: Calculate the height and volume of a pyramid

How To: Solve percentages without a calculator

How To: Find the area of an oblique triangle using formulas

How To: Calculate the area of a parallelogram

How To: Write a slopeintercept equation given an XY table

How To: Translate a shape

How To: Multiply proper & improper fractions

How To: Calculate the area of complex shapes

How To: Find a central angle

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

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

How To: Solve vector field integrals in calculus

How To: Calculate percent composition for chemistry

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

How To: Find a number given Its percent

How To: Find the area & perimeter of triangles & squares

How To: Find the area of triangle using fraction measurement

How To: Do long division without a calculator

How To: Divide small numbers by big numbers

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

How To: Calculate the height and volume of a pyramid

How To: Solve percentages without a calculator

How To: Find the area of an oblique triangle using formulas

How To: Calculate the area of a parallelogram

How To: Write a slopeintercept equation given an XY table

How To: Translate a shape

How To: Multiply proper & improper fractions

How To: Calculate the area of complex shapes

How To: Find a central angle
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