Jack took a test and got 13 out of 17 points. He took a make-up test and got 12 out of 15 points.
The percent of increase in Jack's score is about what?
3.5%
4.6%
5.9%
6.7%
4.6 percent is your answer for the question/ recopied below
Jack took a test and got 13 out of 17 points. He took a make-up test and got 12 out of 15 points.
The percent of increase in Jack's score is about
Steve your answer is wrong sorry.
Steve you are right. I did the math and got the same answer you did. I got it correct in my assignment
4.6 is definitely the answer. Just finished the assignment and went back to check. Thought I should share this for other people.
To find the percent of increase in Jack's score, we first need to calculate the difference between his original score and his new score, and then divide that difference by his original score.
First, let's calculate the original score:
Jack got 13 out of 17 points on the first test. Therefore, his original score is 13/17.
Next, let's calculate the new score:
Jack got 12 out of 15 points on the make-up test. Therefore, his new score is 12/15.
Now, let's calculate the difference between the new score and the original score:
Difference = (New score - Original score) / Original score
Difference = ((12/15) - (13/17)) / (13/17)
To simplify this calculation, we can multiply the numerator and denominator by 17 to remove the fractions:
Difference = (12*17 - 15*13) / (13*17)
Next, let's calculate the percent of increase:
Percent of increase = (Difference / Original score) * 100
Now, let's substitute the values into the formula and calculate the percent of increase:
Percent of increase = (Difference / (13/17)) * 100
Percent of increase = ( (12*17 - 15*13) / (13*17) ) * 100
After performing the calculations, the percent of increase is approximately 4.6%.
Therefore, the correct answer is 4.6%.
13/17 = 76.5%
12/15 = 80.0%
80.0%
-76.5%
3.5% increase (a)