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We already have our first value 900 and the second value 30. Let's assume the unknown value is Y which answer we will find out.
As we have all the required values we need, Now we can put them in a simple mathematical formula as below:
STEP 1900 = 30% × Y
STEP 2900 = 30/100× Y
STEP 3Y = 900 × 100/30
STEP 4Y = 900 × 100 ÷ 30
STEP 5Y = 3000
Finally, we have found the value of Y which is 3000 and that is our answer.
You can easily calculate 900 is 30 percent of what number by using any regular calculator, simply enter 900 × 100 ÷ 30 and you will get your answer which is 3000
Here is a Percentage Calculator to solve similar calculations such as 900 is 30 percent of what number. You can solve this type of calculation with your values by entering them into the calculator's fields, and click 'Calculate' to get the result and explanation.
Question: Your friend has a bag of marbles, and he tells you that 30 percent of the marbles are red. If there are 900 red marbles. How many marbles does he have altogether?
Answer: 3000 marbles.
How To: In this problem, we know that the Percent is 30, and we are also told that the Part of the marbles is red, so we know that the Part is 900.
So, that means that it must be the Total that's missing. Here is the way to figure out what the Total is:
Part/Total = Percent/100
By using a simple algebra we can re-arrange our Percent equation like this:
Part × 100/Percent = Total
If we take the "Part" and multiply it by 100, and then we divide that by the "Percent", we will get the "Total".
Let's try it out on our problem about the marbles, that's very simple and it's just two steps! We know that the "Part" (red marbles) is 900.
So step one is to just multiply that Part by 100.
900 × 100 = 90000
In step two, we take that 90000 and divide it by the "Percent", which we are told is 30.
So, 90000 divided by 30 = 3000
And that means that the total number of marbles is 3000.
Question: A high school marching band has 900 flute players, If 30 percent of the band members play the flute, then how many members are in the band?
Answer: There are 3000 members in the band.
How To: The smaller "Part" in this problem is 900 since there are 900 flute players and we are told that they make up 30 percent of the band, so the "Percent" is 30.
Again, it's the "Total" that's missing here, and to find it, we just need to follow our 2 step procedure as the previous problem.
For step one, we multiply the "Part" by 100.
900 × 100 = 90000
For step two, we divide that 90000 by the "Percent", which is 30.
90000 divided by 30 equals 3000
That means that the total number of band members is 3000.
Step 1: Let's assume the unknown value is Y
Step 2: First writing it as: 100% / Y = 30% / 900
Step 3: Drop the percentage marks to simplify your calculations: 100 / Y = 30 / 900
Step 4: Multiply both sides by Y to move Y on the right side of the equation: 100 = ( 30 / 900 ) Y
Step 5: Simplifying the right side, we get: 100 = 30 Y
Step 6: Dividing both sides of the equation by 30, we will arrive at 3000 = Y
This leaves us with our final answer: 900 is 30 percent of 3000