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4 years ago

bob charges 6.25 per hour for washing cars, If he works 8 1/2 hours a day, about how much money would bob make in a 5 day week?

Mathematics

2 answers:

Komok [63]4 years ago

6 0

Answer:

265.65

Step-by-step explanation:

6.25*8 =50

6.25/2=3.13

50+3.13=53.13

53.13*5=265.65

MAVERICK [17]4 years ago

4 0

Answer:

$265.63 or ($265.625)

Step-by-step explanation:

So we wanna find out the total money bob would make :P

First we wanna see how much bob makes in a day

Bob works 8.5 hours a day and get 6.25 every hour:

With this info we can make the expression: 8.5 * 6.25 which equals 53.125

Then we wanna find out how much he makes in a 5 day week so:

We can make the equation 53.125 * 5 which equals 265.625

We can round 265.625 to <em>265.63</em>

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Radda [10]

Answer:

B (0.312, 0.364)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

1289 randomly selected American adults responded to this question. This means that $n = 1289$ .

Of the respondents, 436 replied that America is doing about the right amount. This means that $\pi = \frac{436}{1289} = 0.3382$ .

Determine a 95% confidence interval for the proportion of all the registered voters who will vote for the Republican Party. 

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 - 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.312$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 + 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.364$

The 95% confidence interval is:

B (0.312, 0.364)

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postnew [5]

Answer:

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(I'm assuming that 'his' is height?)

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yanalaym [24]

Answer:

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Step-by-step explanation:

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mr_godi [17]

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3 years ago

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