3 years ago

I need help with this what’s the answer

Mathematics

2 answers:

Vikentia [17]3 years ago

8 0

Twice the weight: 2x
2.5 pounds more: +2.5
2x + 2.5
The solution would be B

Dovator [93]3 years ago

7 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

Advocard [28]

Answer:

Value of the test statistic, $z_{test} = - 1.17$

Step-by-step explanation:

Null hypothesis, $H_{0}: \mu = 53.9$

Alternative hypothesis, $H_{a} : \mu \neq 53.9$

Sample mean, $\bar{X} = 53.7$

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Standard deviation, $\sigma = 1.8$

Significance level, $\alpha = 0.02$

The value of the test statistics is given by the formula:

$z_{test} = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test} = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test} = - 1.17$

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3 years ago

Carmen runs 7 miles in 60 minutes. At the same rate, how many miles would she run in 24 minutes?

zhuklara [117]

Hey there,
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= 7/60
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Hope this helps :))

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Step-by-step explanation:

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