Another math question?

Question

On friday,Ozzie's mom bought him a guinea pig. This was a magical guinea pig. Each night while Ozzie sleeps, the total number of guinea pigs doubles. Saturday morning, when Ozzie woke up, he found that he had two guinea pigs. On Sunday morning, Ozzie woke up to find four guinea pigs. His mom is beginning to worry. She wants to know how many there will be on Thursday. Tell her how many guinea pigs there will be.

Answer 1

64
Mon: 2x4=8
Tues: 2x8=16
Wed: 2x16=32
Thurs 2x32=64

Answer 2

The guinea pig population is undergoing exponential growth. What you would do is the following:

Let x equal the number of days that passed since friday. this requires exponents. so Friday is day 1, so....
2^(x-1) when x=1 is 1. on saturday, 2^(x-1) when x=2 is 2. so since Thursday is 7, right? so 2^(x-1) when x=7, is 2^7, so 64 guinea pigs.

Answer 3

"Doubling" is multiplying each total by 2,
so if Friday is 1,
then Saturday is 2x1= 2,
Sunday is 2x2 = 4,
Monday is 2x4= 8,
Tuesday is 2x8= 16,
Wednesday is 2x16= 32,
and Thursday is 2x32= 64 guinea pigs!

Answer 4

n = # of days he's had the guinea pig
2^(n-1) = number of guinea pigs in n days
He's had the guinea for 7 days so:
2^(7-1) = 2^(6) = 64

By thursday he'll have 64 of the little buggers.

Answer 5

64

Answer 6

64

Answer 7

64 guinea pigs =) me smart

Answer 8

64 on thursday

Answer 9

64.
Mon. 8; Tues 16; Wed 32; Thurs 64.

Answer 10

64 guinea pigs
M:8
T:16
W:32
Thurs.: 64