I just graded an entire exam out of 100 points, now I have to turn the grade into points on a scale out of 15. How do I do that? Im a humanities person, not a math major dammit! :-(
2007-12-15 18:01:50 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Suppose you scored 80% = 80/100
80/100 = 4/5 = 12/15
2007-12-15 19:59:52 · answer #1 · answered by Como 7 · 2⤊ 2⤋
percentage = out of 100
let x be the score out of 100
then to convert to points out of 15
x /100 * 15 or (x * 15)/100
~~~
2007-12-15 18:06:59 · answer #2 · answered by A Little Sarcasm Helps 5 · 0⤊ 1⤋
x = the grade on the exam
y = grade on a scale of 15
x/100 = y/15
y = 15x/100
So if the student got 90/100 then on a scale of 15 it would be (15(90))/100 = 13.5.
2007-12-15 18:31:51 · answer #3 · answered by Anonymous · 1⤊ 2⤋
set up an equation: ((grade out of 100)/100)=x/15
cross multiply: 15(grade out of 100)=100x
so the new grade will be 15(grade out of 100) divided by 100
2007-12-15 18:08:51 · answer #4 · answered by Anonymous · 1⤊ 2⤋
you exchange it by potential of shifting the decimal factor over to the best 2 situations eg. .06= 6% .9=ninety% etc... Why do no longer you attempt the others? prepare makes suitable and you will see how complication-free it quite is! i'm hoping that develop into what you have been searching for.
2016-11-27 20:02:24 · answer #5 · answered by walko 4 · 0⤊ 0⤋
all i can tell you is that 15 would equal100... i think
2007-12-15 18:06:46 · answer #6 · answered by godvsl7 2 · 1⤊ 3⤋