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How to take interest

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The calculation of interest became relevant</a>

The percentage is a special case of a decimal fraction, one hundredth of a unit.

Nowadays, interest is everywhere not only in mathematics, but also in everyday life, for example: when you apply to a bank for a loan, a mortgage, or choose the type of investment for the purpose of multiplying.

Instructions

    1

Suppose we require 17% of the number 85. This can be done in two ways. The first way is to calculate the numerical value of the percentage of the number, and then subtract this value. To find 17% of 85, divide 85 by 100 and multiply by 17, we get: 85 * 17/100 = 14.45. Now subtract from 85 the obtained value: 85 - 14,45 = 70,55.

    2

The second way is as follows: First calculate the percentage that remains after subtraction, and then determine its value. In our case, 17% is 17/100 = 0.17. The real number 85 corresponds to one. Then, subtracting from the whole 17%, we get: 1 - 0,17 = 0,83. In other words, after we subtract 17% of the 85%, 83% will remain. Now we find the real expression of 83% of 85: 85 * 0.83 = 70.55.

How to take interest Was last modified: May 21st, 2017 By Ruigyyvv
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