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beanokelley
18.12.2019 •
Mathematics
Emma drank three 8 ounce cups of coffee. each cup of coffee contains 130 mg of caffeine. emma's body elimantes 13% of the caffeine each hour. write an exponential function that represents the amount of caffeine, c , in her body after t hours.
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Ответ:
reduced by 13% each times 100-13=87 so 87 % of previous
so
t=time elapsed
I=initial amount
C=future amount
C=I(percentrate)^t
so
Ответ:
get the total and multiply it by 0.25