Asked by OYINDAMOLA
A MAN SAVED #8 THE FIRST DAY #16 THE SECOND DAY #32 THIRD DAY AND SO ON.HOW MANY DAYS WOULD IT TAKES HIM TO SAVE A TOTAL SUM OF #2040
Answers
Answered by
mathhelper
8, 16, 32 , ...
looks like GP with a = 8, r = 2
sum(n) = a(r^n - 1)/(r-1)
2040 = 8(2^n - 1)/(2-1)
255 = 2^n - 1
2^n = 256
I know 2^7 = 256
so n = 7
I will take 7 days
looks like GP with a = 8, r = 2
sum(n) = a(r^n - 1)/(r-1)
2040 = 8(2^n - 1)/(2-1)
255 = 2^n - 1
2^n = 256
I know 2^7 = 256
so n = 7
I will take 7 days
Answered by
oobleck
2^8 = 256
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.