1- 75 is what percent of 500?
2- 30% of 30 is wat #?
3- 90% of wat num is 207?
75/500 = 0.15 = 15%
0.3 * 30 = ?
0.9x = 207
Solve for x.
To find the answers to these questions, we can use the concept of percentages and algebraic equations. Let's go through each question step by step:
1) "What percent of" questions can be solved using the formula:
x = (p/100) * y
where x is the number we want to find (in this case, 75), p is the percentage (in this case, what we want to find), and y is the whole or total number (in this case, 500).
So, we can set up the equation as:
75 = (p/100) * 500
To solve for p, we can rearrange the equation as:
p = (75 * 100) / 500
Now, let's calculate the result:
p = (7500 / 500)
p = 15
Therefore, 75 is 15% of 500.
2) For the second question, we need to find a number that is 30% of 30.
We can set up the equation as:
x = (30/100) * 30
To solve for x, we can calculate:
x = (30 * 30) / 100
x = 900 / 100
x = 9
Therefore, 30% of 30 is 9.
3) Lastly, for the third question, we need to find a number that is 90% of a certain value and equals 207.
We can set up the equation as:
x = (90/100) * y
To solve for y, we can rearrange the equation as:
y = (207 * 100) / 90
Now, let's calculate the result:
y = (20700 / 90)
y ≈ 230
Therefore, 90% of approximately 230 is equal to 207.