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tankabanditka [31]
3 years ago
8

Francis heard that a car stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of the

stereo?
The original price of the stereo is $________.
Mathematics
1 answer:
matrenka [14]3 years ago
3 0

Answer:

$75.08

Step-by-step explanation:

x over 57.75 = 30 over 100

57.75 * 30

1732.5 / 100

17.325

57.75 + 17.325

75.075

Simplify = $75.08

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Answer:

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Step-by-step explanation:

a. Given the probability of success is 0.94 for an expert and that the number of pairs, n=6:

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b.Given the probability of success is 0.74 for a novice and that the number of pairs, n=6:

-Each attempt is independent and therefore the probability of  the events is calculated as:

P(A \ and \B )=P(A)\times P(B)\\\\P(6)=0.74\times0.74\times0.74\times0.74\times0.74\times0.74\\\\=0.1642

#Hence, the probability of correctly identifying the 6 matches is 0.1642

*I have used the sample size of 6(due to conflicting info/question size).

7 0
4 years ago
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Step-by-step explanation:

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