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The simplest, one-step, way is to multiply by 1.3.
But if your arithmetical skills are not up to that the longer way is:
Step 1: divide the number by 10 (move the decial point one place to the left)
Step 2: multiply the result by 3
Step 3: add this to the original number.
Or
Step 1: divide the number by 10 (move the decial point one place to the left)
Step 2a: add this to the original number (+ 10%)
Step 2b: add again (+ 20%)
Step 2c: add yet again (and you've got + 30%).
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Amy spends 30 percent of her money on a book and saves 60 percent if she had 20 pence left how much had she at first?
30 add 60 is 90 percent. 10 percent left. 10 percent is 20p. 100 percent is 2 pounds
What is 30 percent as a common fraction?
Another way to write it is 3/10
What is 50 percent of 30 dollars?
50% of $30 is $15. The easiest way to do this is to just divide 30 by two, since 50% is half off.
What is the percent of increase from 30 to 39?
The percent of increase from 30 to 39 is: 30%
What is 30 percent of 1493 dollars?
30 percent of $1493 = $447.90
What is 10 percent add 30 percent?
10%+30%=40%
What is 35 percent of a number if12 is 15 percent of a number?
There is a quick way to solve many of these questions. A quick way to do this in your head, is to break down the result. You want 35% You have 15% What is 35%? Two 15%(30) and 1/3rd of a 15%(5). If you double the known number, you get the answer to the question of 30% of the number is 12 is 15% of it. So, 12 + 12 is 30% Now you are 5% off. 1/3rd of 15% is 5% so 1/3rd of 12 is 4 Now you know that 30% of the number would be 24 and 5% of the number would be 4 Add the two and get your answer.
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.
What would 30 percent be in a decimal?
.30 is one way
Calculate 30 percent of 40 and 25 percent of 20 then add the two result together?
You get 17.
What's 19.95 add 30 percent?
49.95
Calculate 30 percent of 40 and 25 percent of 20 then add the two results together?
The answer would be 17.
Amy spends 30 percent of her money on a book and saves 60 percent if she had 20 pence left how much had she at first?
30 add 60 is 90 percent. 10 percent left. 10 percent is 20p. 100 percent is 2 pounds
Jorge has four liters of 30 percent acid solution how much water should he add to make 25 percent acid solution'?
Add 0,8 L of water.
What is 30 percent of 185.00?
To find 30 percent of a number, multiply the number by 0.3. In this instance, 0.3 x 185.00 = 55.5. If the number refers to a unit of currency, don't forget to add the appropriate unit and add an extra trailing zero.
What is the equation used to add 30 percent to a number?
The function f(x) = 1.3*x
How much is if you add 6 percent of tax to 30?
The tax amount is $1.80 and the total will be $31.80
