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Iteru [2.4K]
2 years ago
11

If $16 is 80% of the money I have in my wallet, how much do I have in total?

Mathematics
2 answers:
Bond [772]2 years ago
4 0

Answer:

it would be 20 dollars or 2 dollars

Step-by-step explanation:

pychu [463]2 years ago
3 0

Answer:

$20

Step-by-step explanation:

to check

16/20

divide

= .80

times 100

80%

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The correct question is: evaluate

\sqrt[3]{- \frac{8}{125} }

The answer is: option B. -2 / 5

Explanation:

\sqrt[3]{- \frac{8}{125} }=- \frac{ \sqrt[3]{8} }{ \sqrt[3]{125} } =- \frac{ \sqrt[3]{2^3} }{ \sqrt[3]{5^3} } =- \frac{2}{5}
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3 years ago
I need to know this help
antoniya [11.8K]

Answer:

The slope is 2/3 and the y intercept is 5/9

Step-by-step explanation:

This is written in the form

y= mx+b where m is the slope and b is the y intercept

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m = 2/3 and b=5/9

The slope is 2/3 and the y intercept is 5/9

4 0
3 years ago
For a quality control test, a company checks the miles per gallon (mpg) for a simple random sample of 100 minivans drawn from it
amm1812

Answer:

95% confidence interval for the average mpg of all minivans in the company's inventory is [15.22 mpg , 15.98 mpg].

Step-by-step explanation:

We are given that a company checks the miles per gallon (mpg) for a simple random sample of 100 minivans drawn from its current inventory.

The average mpg of these 100 minivans is 15.6 with a standard deviation of 1.9 mpg.

Firstly, the pivotal quantity for 95% confidence interval for the population mean is given by;

                         P.Q. = \frac{\bar X -\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample average mpg = 15.6 mpg

             s = sample standard deviation = 1.9 mpg

            n = sample of minivans = 100

            \mu = population average mpg

<em>Here for constructing 95% confidence interval we have used One-sample t test statistics because we don't know about population standard deviation.</em>

So, 95% confidence interval for the population mean, \mu is ;

P(-1.987 < t_9_9 < 1.987) = 0.95  {As the critical value of t at 99 degree

                                         of freedom are -1.987 & 1.987 with P = 2.5%}  

P(-1.987 < \frac{\bar X -\mu}{\frac{s}{\sqrt{n} } } < 1.987) = 0.95

P( -1.987 \times {\frac{s}{\sqrt{n} } } < {\bar X -\mu} < 1.987 \times {\frac{s}{\sqrt{n} } } ) = 0.95

P( \bar X-1.987 \times {\frac{s}{\sqrt{n} } } < \mu < \bar X+1.987 \times {\frac{s}{\sqrt{n} } } ) = 0.95

<u>95% confidence interval for</u> \mu = [ \bar X-1.987 \times {\frac{s}{\sqrt{n} } } , \bar X+1.987 \times {\frac{s}{\sqrt{n} } } ]

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                                      = [15.22 mpg , 15.98 mpg]

Therefore, 95% confidence interval for the average mpg of all minivans in the company's inventory is [15.22 mpg , 15.98 mpg].

It is appropriate to compute a confidence interval for this problem using the Normal curve as t test statistics is used when data should follow normal distribution.

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What is the length of a side a? Round to the nearest tenth of an inch.
Galina-37 [17]

Answer:

Step-by-step explanation:

a = 16 inches

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