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Gnom [1K]
3 years ago
7

Summer spent $55.60 on clothes before sales tax. If sales tax is 7.5%, what did Summer spend with tax included?  *Add Explanatio

n If U Can*
Mathematics
1 answer:
vampirchik [111]3 years ago
3 0
$59.77. Turn the percent into a decimal by moving the decimal to the left two places (7.5 to 0.075). Then multiply the new decimal by the cost (55.60×0.075=4.17). 4.17 would be the total sales tax, so then add it to the price (55.77+4.17=59.77). Hope that helped.
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Answer:

Step-by-step explanation:

Using normal distribution

z = (x - mean) / standard deviation

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That means probability of success is p =9/100 = 0.09,

then probability of failure is

q = 1-p =1 -0.09= 0.91

n = number of sample = 200

x=(8% of 200) = 0.08×200 =16

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Standard deviation = npq = 200×0.09×0.91= 16.38

We are looking for the probability that less than 8% of the people sampled will answer yes to the question

8% of 200 = 16

P (x greater than 16) =P(x lesser than/equal to 15)

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= -0.18

Looking at the normal distribution table

P(x greater than 16) = 0.5714

5 0
3 years ago
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. There are 18 students in the Math Club. Of the 18 students 1/6 have red hair, 4/6 have brown hair and the rest have blonde hai
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Answer:

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Hope it helps

Step-by-step explanation:

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