hi, i cant figure out this equation and its making me nuts, a man gets 1 cent for the first day, it doubles everyday for 34 days................................next part, when would be become a millionaire?

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- Feb 25th 2008, 07:56 PMmimi1980looping
hi, i cant figure out this equation and its making me nuts, a man gets 1 cent for the first day, it doubles everyday for 34 days................................next part, when would be become a millionaire?

- Feb 25th 2008, 08:53 PMmr fantastic
where M is money (in cents) and n is number of days.

So sub n = 34 and solve for M.

Sub M = (however many cents are in one million dollars) and find the first integer valuem of n such that you've got at least a million dollars. Trial and error might be the best appoach here ..... Hint: From the first part you know n < 34 ......) - Feb 25th 2008, 09:13 PMSoroban
Hello, mimi1980!

Quote:

A man gets 1 cent for the first day, it doubles everyday for 34 days.

(a) How much will he have at the end of the period?

(b) When would be become a millionaire?

He gets: . cents.

This is a geometric series with first term 1 and common ratio 2.

The sum is: . cents.

(a) He will have a total of: .

When does cents?

We have: .

Take logs: .

Hence: .

(b) He becomes a millionaire on the 27th day.

- Feb 25th 2008, 09:17 PMmr fantastic