After the fifth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %.

alright, so i know this is an older post, but i need to fix it.

n=1 in this problem, that means that all you're doing is adding all the n's up then adding that number to the rest of them, here's an example (which just so happens to be the answer):

numerator

{(n+11)+(n+10)+(n+9)+(n+8)+(n+7)+(n+6)+(n+5)}

n+n+n+n+n+n+n=7 (because n=1)

7+11+10+9+8+7+6+5=63 (that's your numerator)

denominator

{(n)+(n++(n+11)}

add all of the n's together:

n+n+n+n+n+n+n+n+n+n+n+n=12

now you add that to the rest of the numbers:

12+1+2+3+4+5+6+7+8+9+10+11=78 (that's your denominator)

percentage

now for the percentage you just divide the numerator and the denominator:

63/78=.808 or 80.8%

and that's your answer.

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

a

explanation: