3 years ago

A gas tank in a car has a capacity of

Mathematics

1 answer:

Naddik [55]3 years ago

8 0

Divide total miles by total liters:

340 miles / 60 liters = 5 2/3 miles per liter

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A researcher conducted an Internet survey of 500 students at a particular college to estimate the average amount of money studen

bonufazy [111]

Answer:

The margin of error is $ME = 2.2962$

Step-by-step explanation:

From the question we are told that

The number of student is $n = 500$

The highest amount is $A =$ $200

The lowest amount is $B =$ $75

The sample mean is $x =$ &140

The Standard deviation of this set is mathematically evaluated as

$s = \frac{A-B}{4}$

Substituting values

$s = \frac{200-75}{4}$

$s = 31.25$

The margin of error (ME) is mathematically evaluated as

$ME = t_{n-1}__{\alpha }} * \frac{s}{\sqrt{n} }$

Where $t_{n-1}__{\alpha }}$ is the critical value for $\alpha = 0.05$ i.e the significance level

From the critical value table this is $t_{n-1}__{\alpha }} = 1.649$

$ME = 1.649 * \frac{31.25}{\sqrt{500} }$

$ME = 2.2962$

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3 years ago

Decrease £189 by 38%

Trava [24]

I believe it would be around 117.18

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2 years ago

your friend works as a waitress at your local restaurant her income consists of an hourly wage plus tips. On Wednesday, your fri

shusha [124]

$25+5x=30.76+3x$

about $3 because...
$25+5(3)=40$ and $30.76+3(3)=39.76$
which is probably as close as your gonna get

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3 years ago

54 is 90% of what number?

Zarrin [17]

The answer is 60 surprisingly

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2 years ago

Express the percent as a decimal.<br> 30\%30%30, percent<br> Stuck help

Marrrta [24]

If it’s 30% converted to a decimal it’ll be .30

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2 years ago

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