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tensa zangetsu [6.8K]
2 years ago
12

3. Before tax, Louise spent a total of $38 on the items below at Starbucks

Mathematics
2 answers:
soldier1979 [14.2K]2 years ago
8 0

Answer:

  47.4%

Step-by-step explanation:

The total amount Louise spent on Frappuccinos was 4×$4.50 = $18. The fraction that is of the total is ...

  Fraps/Total = $18/$38 = 9/19

That can be converted to a percentage by multiplying by 100%:

  9/19 = (9/19)×100% ≈ 47.4%

Louise spent 47.4% of the $38 on Frappuccinos.

_____

<em>Additional comment</em>

The decimal equivalent of 9/19 is a repeating decimal with an 18-digit repeat.

vladimir2022 [97]2 years ago
3 0
You can write the answer in many ways, it depends what you have to round it to .
Everything is in the attachment below .
It can be written as :
47%
47.37%
47.4%
or in its original form
47.367%
Hope this helps !

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jeka94
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3 years ago
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The soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation o
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Answer:

Step-by-step explanation:

The mean of the reading points is

Mean = (5.8 + 5.9 + 4.9 + 5.2 + 5.0 + 4.9 + 6.2 + 5.1 + 5.7 + 6.1)/10 = 5.48

The process is out of control if the mean salt level of the readings is greater than 5.4

For the null hypothesis,

µ = 5.4

For the alternative hypothesis,

µ > 5.4

This is a right tailed test.

Since the population standard deviation is given, z score would be determined from the normal distribution table. The formula is

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = population standard deviation

n = number of samples

From the information given,

µ = 5.4

x = 5.48

σ = 0.3

n = 10

z = (5.48 - 5.4)/(0.3/√10) = 0.84

Looking at the normal distribution table, the probability corresponding to the z score is 0.7996

The probability value to the right of the z score is 1 - 0.7996 = 0.2

Assuming a significance level of 0.05

Since alpha, 0.05 < than the p value, 0.2, then we would fail to reject the null hypothesis. Therefore, At a 5% level of significance, we can conclude that the process is not out of control. If we had rejected the null hypothesis, then our conclusion would be that the process is out of control.

4 0
3 years ago
Milan spent a total of $70 at the grocery store. Of this amount, he spent $63 on fruit. What percentage of the total did he spen
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Answer:

79.3

Step-by-step explanation:

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1,614,840=x

x=1,614,840×100÷2,037,634

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