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iheartfood

question is inside :)

  • one year ago
  • one year ago

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  1. iheartfood
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    |dw:1353813925701:dw|

    • one year ago
  2. iheartfood
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    A. 16 years B. 54 years C. 2.4 years D. 9 years

    • one year ago
  3. tkhunny
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    \(0.29\cdot(1.046)^{t} = 0.60\) Solve for 't'. You will need logarithms.

    • one year ago
  4. iheartfood
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    how do i do that?

    • one year ago
  5. tkhunny
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    Introduce the logarithm \(\log\left(0.29\cdot(1.046)^{t}\right) = \log(0.60)\) Now what?

    • one year ago
  6. iheartfood
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    idk.. but i think the answer is A. 16 years.. is that right?

    • one year ago
  7. tkhunny
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    "I think the answer is..." is not ever an acceptable response. In mathematics, you must prove it. Use the logarithm rules. There is a reason why we did that massive problem, before. \(\log(0.29) + t\cdot\log(1.046) = \log(0.60)\) You need to see where ALL of this came from.

    • one year ago
  8. iheartfood
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    kk so what do i do now then?

    • one year ago
  9. tkhunny
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    Solve for 't'. You must be able to do this. This is why we invented notation. It will help you. Use the notation, and proper operations on that notation, to solve for 't'. Let's see what you get.

    • one year ago
  10. iheartfood
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    kk thanks!

    • one year ago
  11. tkhunny
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    Are you going to show us any work?

    • one year ago
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