The percentage increase is worked out by taking the difference between the original amount and the final amount, and then dividing that difference by the original amount. This is a simple calculation that requires just a basic calculator. A writing utensil and scratch paper may be useful for recording your results.
Know MoreFind the difference between the starting amount and the final amount. For example, if the original amount was 20 and the new number is 28, you would perform the following calculation: 28 - 20 = 8. You should always get a positive number. If the number is negative, then there is either a decrease in the two amounts or you used the incorrect amount.
Divide the difference of the two numbers by the original. This usually produces a decimal, unless the increase is a factor of the original value. For example, if you were to use the numbers from the previous step, the process would look like this: 8 / 20 = 0.40.
Multiply the decimal number by 100 to get the percentage increase. Using the same numbers as in the previous examples, 0.40 x 100 = 40 percent. Remember to keep the decimal spaces consistent throughout your calculations.
The graph of a linear equation forms a straight line, while a non-linear equation's graph does not form a straight line.Most equations can be graphed on a Cartesian coordinate plane using the variables x and y.
Full Answer >The difference between an expression and an equation is that an expression is a mathematical phrase representing a single value whereas an equation is a mathematical sentence asserting equality between two quantities. Also, an equation is normally separated into left- and right-hand sides by an equal sign.
Full Answer >The difference of 9 and the quotient of a number T and 6 which equals 5 is either 21 or -21. When T/6 = 5, basic algebra gives the formula T = 6 * 5, which gives T = 30.
Full Answer >The factors of a number are all the integers that can be multiplied together to produce that number. For example, 1, 2, 3 and 6 are all factors of 6. Multiples are all the numbers of which a given number is a factor.
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