alan wants to raise his grade from an 83 to 90 approx what precentage increase would that be?
90 - 83 = 7
7 / 83 = 0.084 = 8 %
why do u divide by the original instead of 90?
You're looking for the percentage increase. Alan's current grade is 83. The increase from 83 to 90 is 8%.
To calculate the percentage increase needed, you need to find the difference between the desired grade and the current grade, and then divide it by the current grade. Here's the step-by-step process:
1. Find the difference between the desired grade and the current grade:
Difference = Desired Grade - Current Grade
In this case, the difference would be:
Difference = 90 - 83 = 7
2. Calculate the percentage increase:
Percentage Increase = (Difference / Current Grade) * 100
Substitute the values:
Percentage Increase = (7 / 83) * 100
3. Simplify the calculation:
Percentage Increase ≈ 8.43
So, raising his grade from 83 to 90 would require approximately an 8.43% increase.