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lesantik [10]
3 years ago
8

You purchased $132.49 worth of wheels and bearings for your skateboards. The shop charges $15 per board to install them. The tot

al cost is $192.49. How many skateboards will be repaired?
Mathematics
1 answer:
Mila [183]3 years ago
4 0

4 skateborards will be repaired

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Newton's Law of cooling is
T(t)=T_{a}+(T_{0}-T_{a})e^{-0.1947t}
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-0.1947t=ln \frac{15}{33.6}
t= \frac{ln(15/33.6)}{-0.1947} =4.142

4.142 hours before 2 am is 9:52 pm (the previous day) approximately.

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