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1=5s
2=25s
3=125s
4=625s
5=?

2007-12-25 16:41:52 · 9 answers · asked by Hitman47 3 in Science & Mathematics Mathematics

9 answers

I realize that you probably meant for these to be the first 4 terms in a sequence, but this will just goes to show why you should be careful with your language.

Careful how you use your equals signs and numbers. According to the first line,

1 = 5s

This SAYS that one equals five times s, but clearly this is not what you mean.

Similarly, the second line SAYS two equals twenty-five times s, etc.

etc.

If you did mean for these numbers to be a sequence, you should really use proper notation, such as

{5s, 25s, 125s, 625s, ...}

or

a1=5s
a2=25s
a3=125s
a4=625s
a5=?

where a# denotes the #'th term in the sequence.

2007-12-25 18:13:42 · answer #1 · answered by jtabbsvt 5 · 0 0

Obviously it is a series of "Geometric Progression" of the form ar^(n-1)

a = 5 secs ; r = 25/5 = 125/25 = 625/125 = 5 : This is the multiplying factor.

The 5th term is found by 5r^4 = 5*5^4 = 5^(1+4) = 5^5 = 3125 secs

2007-12-25 17:10:14 · answer #2 · answered by hydraulicsFreak 2 · 0 0

These are just the successive powers of 5, and the fifth power of 5 is 3125, so the answer is 3125s.

2007-12-25 16:53:20 · answer #3 · answered by TitoBob 7 · 1 0

You must not recognize patterns all that well...
n = (5^n)s would be the general thing for you to simply plug in your calculator.
so,
5 = (5^5)s
and if you MUST go to a calculator, the answer would be 3125s.

2007-12-25 17:05:50 · answer #4 · answered by Ian W 2 · 0 0

the answer is 3125.

have a nice day and Merry Christmas.

2007-12-25 19:43:26 · answer #5 · answered by Anonymous · 0 0

3,125: for each n, the coefficient of s is 5^n.
So, if you extended your pattern the other direction:
0=s
-1 = s/5
-2 = s/25
etc.

2007-12-25 16:54:33 · answer #6 · answered by Arnold K 2 · 0 0

3125

2007-12-25 16:52:11 · answer #7 · answered by John G 3 · 0 0

3125

2007-12-25 16:50:23 · answer #8 · answered by Zombie King 5 · 0 0

3125
i guess im the master eh??
lol =]



i cheated.

2007-12-25 16:53:16 · answer #9 · answered by ♪♫Lynn♫♪ 5 · 0 0