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KJ4UTS

  • one year ago

1. A population of bacteria grows at the rate of 13.2% in one hour. What is the hourly growth factor? A. 13.2% B. 133.2% C. 113.2% D. There is not enough information to determine the hourly growth factor. 2. The hourly growth factor for a population of bacteria is 0.98. What is the hourly growth rate? A. -2% B. 98% C. 198% D. -.98%

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  1. anonymous
    • one year ago
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    you should be able to use growth and decay formula \[y=Ae ^{kt}\]

  2. anonymous
    • one year ago
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    y = total population after time t A = Starting population k = % rate of growth t = time in hours or years e = Eulers number

  3. campbell_st
    • one year ago
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    you don't need a formula... you just need to read the question

  4. campbell_st
    • one year ago
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    and what if the formula is A = P(1 + r/100)^t

  5. anonymous
    • one year ago
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    oops... I just read the bacteria part... sorry

  6. KJ4UTS
    • one year ago
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    So for number 2 would the 0.98 just be 98%?

  7. KJ4UTS
    • one year ago
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    and for number one, 1.132 or 113.2%?

  8. campbell_st
    • one year ago
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    so if you start with 100 and it grows to 113.2 what is the growth..?

  9. campbell_st
    • one year ago
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    for number 2... you start with 100 and it declines to 98... so what did it decline by answer as a pergentage

  10. KJ4UTS
    • one year ago
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    -2%

  11. campbell_st
    • one year ago
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    that's correct

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