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30.0 to arrive at ten percent, simply move the decimal place one unit to the left.

3.0-


This works for any number written in base 10.


ten percent of 745.0 would be 74.50... etc.

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Q: How do you set up 10 percent of 30?
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How does one find the percent of a sum?

To find the percent of anything, you change the percent to a decimal, and multiply. Finding the percent of a sum is no different. ex: 10% of (30 + 100) I can use the distributive property to take 10% of 30, then add 10% of 100. .10(30 + 100) = .10*30 + .10*100 = 3 + 10 = 13 In order to see how this works, let's not distribute. .10(30+100) and instead, add 30 +100 first, then take the percent. .10(130) = 13 We get the same answer! You can take the percent of the whole thing, or you can take the percent of the pieces that add up to the whole.


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99.30 % is the same as 30/100, or 3/10. If you set up the equation (3/10)=(x/330), you can cross multiply and isolate the x. You can also take 3/10 of 330 by dividing 330 by ten and multiplying by 3.


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Well 10 percent of 50 is 5 because you move the decimal point back one. Multiply 6 by the 5, which is 30. 60 percent of 50 is 30. ---- Take a calculator and input 50 multiplied by 60%. You come up with the answer of 30.


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It is: 30/53 times 100 = 56.604% rounded up to three decimal places