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9 September, 09:25

The function P (t) = 100 / (1+400*e^-0.15t) describes how to find the percentage of

families who recycle, P (t), in relation to any time t, where t is the number of

years after 1960.

According to this information, what was the percentage of families who

recycled in 1990? (Round your answer to the nearest hundredth.)

Answer options

A: 18.37

B: 88.12

C: 104.44

D: 100.00

+2
Answers (1)
  1. 9 September, 10:23
    0
    answer: A

    Step-by-step explanation:

    Since 1990 is 30 years after 1960,

    P (30) = 100 / (1+400*e^-4.5)

    = 18.370200867

    Option A 18.37
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