Solving Percent Problems Using Equations

Solving Percent Problems Using Equations-69
The word percentage and percent are related closely to each other. Percent ( or symbol %) is accompanied with a specific number. In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100, which means, a part per hundred. It is to be noted that, percentages have no dimension, hence are dimensionless numbers. For each white chocolate bar, the ratio of the number of dark chocolate boxes to the total number of white chocolate bars can be represented as a fraction.

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This calculator solves four types of percentage problems. This can be solved in two stps: Step 1: Write 15% as a decimal number: 15% = 0.15 Step 2: Multiply 0.15 and 20 to get the answer: 0.15 * 20 = 3 Type 2: The number 25 is what percentage of 80?Learn how to calculate percentage from this lesson. Here, let us understand the concepts of percentage through a few examples in a much better way. The actual interpretation of percentages can be understood by the following way: The same quantity can be represented in terms of percentage occupied, which is given as: Total quantity present = 5 kg Ratio of apples (in terms of total quantity) = % Thus fraction can be converted to percentage simply by multiplying the given fraction by 100. To convert a decimal to a percent, just move the decimal point to places to the right and put a percent sign at the end! This online calculator solves the four basic types of percent problems and percentage increase/decrease problem.Thus, we can rewrite the statement above: The statement: "The part is some percent of the whole.", becomes the equation: the part = some percent x the whole Since a percent is a ratio whose second term is 100, we can use this fact to rewrite the equation above as follows: the part = some percent x the whole becomes: the part = x the whole Dividing both sides by "the whole" we get the following proportion: Since percent statements always involve three numbers, given any two of these numbers, we can find the third using the proportion above. Problem 1: If 8 out of 20 students in a class are boys, what percent of the class is made up of boys?Analysis: In this problem, you are being asked 8 is what percent of 20?This tutorial let's you see the steps to take in order to do just that! Always stay under budget by figuring out your total cost BEFORE you hit the check out.Watch this tutorial and learn how to calculate sales tax!This tutorial shows you how to take a words problem and turn it into a percent proportion.Then see how to solve for the answer using the mean extremes property of proportions. Percents and Decimals are just tools that let us represent numbers, and that is why percents can be converted into decimals, and decimals can be converted into percents.


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