On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 35 questions correct. What was the percent of increase?
The difference is 10 questions.
10/25 = 0.4 = 40% increase
To find the percent increase, we need to calculate the difference between the second attempt and the first attempt, and then divide it by the number of questions in the first attempt.
Let's start by calculating the difference:
35 - 25 = 10
Next, we'll calculate the percent increase:
Percent Increase = (Difference / First Attempt) * 100
Percent Increase = (10 / 25) * 100
Percent Increase = 0.4 * 100
Percent Increase = 40
Therefore, the percent increase is 40%.
To calculate the percent of increase, we need to find the difference between the initial value and the final value, divide that difference by the initial value, and then multiply by 100 to get the percentage.
In this case, the initial value is 25 (the number of questions the student got correct on the first attempt), and the final value is 35 (the number of questions the student got correct on the second attempt).
The difference between the final value and the initial value is 35 - 25 = 10.
To calculate the percent increase, we divide the difference (10) by the initial value (25) and multiply by 100:
(10 / 25) * 100 = 0.4 * 100 = 40.
Therefore, the percent increase is 40%.
So, the student showed a 40% increase in the number of questions answered correctly on the second attempt compared to the first attempt.