Asked by Kevin
Initially, 10 people have an infection. The next day, every infected person infects one more person. If this pattern continues, how many days will it take for 1280 people to be infected?
a) 7 days
b) 64 days
c) 10 days
d) 128 days
a) 7 days
b) 64 days
c) 10 days
d) 128 days
Answers
Answered by
R_scott
10 * 2^d = 128
Answered by
mathhelper
I think R_scott meant to say
10* 2^d = 1280
then
2^d = 128
we know 2^7 = 128
so d = 7
10* 2^d = 1280
then
2^d = 128
we know 2^7 = 128
so d = 7
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