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How do you find a percent of a number if you know another percent?
Wiki User
∙ 12y ago
To find out the percent of a number if you know another percent you do. . .
the method of Cross-Mutltiplying and Dividing, for example let's say I got 23/25 on a math test and I want to know my percentage so X/100,
your equation should look something like 23/25 = x/100.
now that you got your equation let's do the math.
Do 23 x 100 (23 multiplied by 100) then you get an answer of 2300.
You would then divide 2300 by 25 and get your answer of 92%.
That's basically why this method is called cross multiplying and dividing.
Wiki User
∙ 12y ago
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How do you find a percent if the whole number is know?
a as a percentage of b = 100a/b
What is 8 percent of 49?
To find a percent of a number, follow this rule. Suppose you have a number X, and you want to know what is P percent of X. Then P percent of X is (P/100) * X So in this case, you want to find (49/100) * 8, which is 3.92. For another example, what is 75 percent of 8? Then you have (75/100) * 8, which is 6. What is 100% of 8? It is (100/100) * 8, which is 8.
How do you find a number when 4 percent of it plus the percentage is known?
Multiply by 25 If the % is 4% and you know the number 4% is. We know 4 goes into 100 25 times. 100 divided by 4 = 25
12 percent of what number is 0.8?
If 0.8 = 12% then 0.8 divided by 12 will give you 1%, which is 0.0666 recurring. If you then multiply this number by 100 you can find 100%, which is the number you wished to know, this is 6.666 recurring.
If you know the subtrahend and the the difference how can you find the minuend?
The first number in a subtraction. The number from which another number (the Subtrahend) is to be subtracted. Example: in 8 − 3 = 5, 8 is the minuend.
How do you find a percent if the whole number is know?
a as a percentage of b = 100a/b
If you know a factor of a number can you find another factor explain?
Factors come in pairs. If you know one factor, divide it into the number. The answer will be another factor.
What is 8 percent of 49?
To find a percent of a number, follow this rule. Suppose you have a number X, and you want to know what is P percent of X. Then P percent of X is (P/100) * X So in this case, you want to find (49/100) * 8, which is 3.92. For another example, what is 75 percent of 8? Then you have (75/100) * 8, which is 6. What is 100% of 8? It is (100/100) * 8, which is 8.
How do you find 65 percent of a number?
You're supposed to know by now that 65% means 0.65 . Just multiply that by your number.
How do you get the percent?
To get the percent of a number you must multiply the percent you are finding by the number you are finding the percent of. For example: We must find 30% of 12, 450. You must multiply 30% to 12, 450. 12, 450 * 30% (or 0.30) = 3735 It's easy if you know what I mean.
How do you find 15 percent of a number?
We know that 70 percent is 70/100 or .7, and we know that 15 percent is 15/100 or .15. Now we know that to find 15 % of 70 %, we multiply .7 times .15 and we get .105 for an answer.
How do you find a number when 4 percent of it plus the percentage is known?
Multiply by 25 If the % is 4% and you know the number 4% is. We know 4 goes into 100 25 times. 100 divided by 4 = 25
If 8 percent of the questions are essay questions how many questions are essay questions?
You would need to know the number of questions on the test, and then multiply that number by 0.08 to find the number of essay questions.
12 percent of what number is 0.8?
If 0.8 = 12% then 0.8 divided by 12 will give you 1%, which is 0.0666 recurring. If you then multiply this number by 100 you can find 100%, which is the number you wished to know, this is 6.666 recurring.
If you know the subtrahend and the the difference how can you find the minuend?
The first number in a subtraction. The number from which another number (the Subtrahend) is to be subtracted. Example: in 8 − 3 = 5, 8 is the minuend.
What does by mean in math?
You normally multiply a number by another number
What is the importance of percent?
The importance of a percent is that the percent means out of 100 and if you needed to find out a specific number you can use a percent to show how much or how many you need or have lost. The importance of a percent is because it helps people's jobs and it helps our world and our every day life uses percentages and we don't even know it.
