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toxicsugar22

  • 5 years ago

Caffenie leaces the body at a rate of 15.6% each hou. your first cup of coffee in the morning has 100 mg of caffenie How long will it take before you have 50 mg of that caffenie in your body and how long will it take before you have 25 mg of caffenine in your body

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  1. anonymous
    • 5 years ago
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    Y=-.156x + 100. Put in each value for x and solve.

  2. anonymous
    • 5 years ago
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    I'm sorry, not for x, for y and solve for x.

  3. anonymous
    • 5 years ago
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    Y=-.156x + 100. Put in each value for y and solve.

  4. toxicsugar22
    • 5 years ago
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    k i got .00208 and .00312

  5. toxicsugar22
    • 5 years ago
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    ia itright

  6. toxicsugar22
    • 5 years ago
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    torch

  7. anonymous
    • 5 years ago
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    Actually you have to use k=Ce^rt. C=.5 K=50 r=-.156 Solve for t.

  8. toxicsugar22
    • 5 years ago
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    ok so what doo i do first

  9. toxicsugar22
    • 5 years ago
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    after plugiign in the number s

  10. toxicsugar22
    • 5 years ago
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    can u show me please so i will know

  11. toxicsugar22
    • 5 years ago
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    can u show me please so i will know

  12. anonymous
    • 5 years ago
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    K first divide by the constant. Then natural log both sides and divide by the other constant and you get the answer you had first.

  13. toxicsugar22
    • 5 years ago
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    .0028 and .0032

  14. toxicsugar22
    • 5 years ago
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    can u show me step by step so I know how to ddo it the next time

  15. anonymous
    • 5 years ago
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    Alright do you have an answer key? Like what you're supposed to get?

  16. toxicsugar22
    • 5 years ago
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    no where

  17. anonymous
    • 5 years ago
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    Well you said the natural log answer a while ago

  18. anonymous
    • 5 years ago
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    Oh jk that was a different one.

  19. toxicsugar22
    • 5 years ago
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    yeah so can u please show me step by step on how to solve this problem

  20. toxicsugar22
    • 5 years ago
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    please

  21. toxicsugar22
    • 5 years ago
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    please

  22. anonymous
    • 5 years ago
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    K hang on. I'll write it out for you but it'll take a bit. My iPad hates the typing in this.

  23. toxicsugar22
    • 5 years ago
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    not to be rude but cn u hurry up please

  24. anonymous
    • 5 years ago
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    Alright, an easy way to think about it is to use a proportion. -.156=x/amount of caffeine. For example for the first one, you put in 100 and then you get 84.4. Basically you found the percentage of the amount of caffeine and subtracted it. You do that 4 times to get to 50, so that's 4 hours. Fir the second one, you do the same thing, and just keep going. You get 8 hours. Sorry it took so long, I was busy.

  25. anonymous
    • 5 years ago
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    Good nuff?

  26. toxicsugar22
    • 5 years ago
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    yes thank you

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