# How To Solve Percentage Math Problems Any of those parts may be the unknown value to be found.Percentage problems such as "50 is 20 percent of what number? Practice by solving the other problem, "What percent of 125 is 75? In this example, x is the unknown, is=75 ("is 75"), and "of"=125 ("of 125"). The more money you put in your account, the more money you get in interest.

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In order to answer them correctly, you'll need to examine the questions carefully.

This numbers are called the percentage (14) and the base (21).

The other ratio is called the rate and always has the denominator 100.

Example In a classroom 14 of the 21 students are female. We know that the ratio of girls to all students is $$\frac$$ And we know that this ratio is a proportion to a ratio with the denominator 100.

$$\frac=\frac$$ As we saw in the last section from here we can calculate x $$x=100\cdot \frac$$ $$x=\frac$$ $$x\approx 67$$ i.e. One of the ratios in these proportions is always a comparison of two numbers (above 14/21).Jeff wonders how much money the coupon will take off the original 0 price.In a percent problem, the base represents how much should be considered 100% (the whole); in exponents, the base is the value that is raised to a power when a number is written in exponential notation. Since the percent is the percent off, the amount will be the amount off of the price.Look at the pairs of multiplication and division facts below, and look for a pattern in each row.Percent problems can also be solved by writing a proportion.A proportion is an equation that sets two ratios or fractions equal to each other.With percent problems, one of the ratios is the percent, written as Incorrect.Always make sure you know what is being asked, what operations are necessary and what units, if any, you need to include in your answer.The simplest way to eliminate extraneous data is to identify the question; in this case, "How many games did Kim win in July?Jeff has a coupon at the Guitar Store for 15% off any purchase of 0 or more.He wants to buy a used guitar that has a price tag of 0 on it.

## Comments How To Solve Percentage Math Problems

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