2 years ago

Tyrone paid $234.33 for a new watch, after tax, and the tax rate is 7%. What was the original price of the watch?

Mathematics

1 answer:

nevsk [136]2 years ago

6 0

The cost of the watch originally cost $1,640.31

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Let X represent the amount of time until the next student will arrive in the library parking lot at the university. If we know t

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Step-by-step explanation:

The random variable X is defined as the amount of time until the next student will arrive in the library parking lot at the university.

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The probability density function of X is:

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The parameter of the exponential distribution is:

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$P(X>10)=\int\limits^{\infty}_{10}{0.25e^{-0.25x}}\, dx$

$=0.25\times \int\limits^{\infty}_{10}{e^{-0.25x}}\, dx\\=0.25\times |\frac{e^{0.25x}}{-0.25}|^{\infty}_{10}\\=(e^{-0.25\times \infty})-(e^{-0.25\times 10})\\=0.0821$

Thus, the probability that it will take more than 10 minutes for the next student to arrive at the library parking lot is 0.0821.

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Madelyn has completed 10/20 problems. Will has completed 80% of the problems. Adam has finished 3/4 of them. Who has finished th

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Madelyn has completed 50%

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