ilyabelll9046 ilyabelll9046

24-05-2022
Mathematics

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A small town has 2000 inhabitants. At 8 AM, 160 people have heard a rumor. By noon half the town has heard it. At what time will 90% of the population have heard the rumor

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jsimpson11000 jsimpson11000

24-05-2022

Answer:

1:17pm

Step-by-step explanation:

160 to 1000 in 4 hours

1000 = 160 e^(kt) when t = 4 k = .458145

90 % of 2000 = 1800

1800 = 160 e^(.458145 t) t = 5.283 hours from 8 o'clock

= 1: 17 pm

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