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3 years ago

9

A certain alloy contains 14.25% nickel. How much nickel is there in a piece weighing 375 pounds? Round your answer to the neares

t hundredth.

2 answers:

sertanlavr [38]3 years ago

6 0

1425 x 375 = 53.44 hope this helps

Tomtit [17]3 years ago

5 0

<span>Turn the percent to a decimal by moving the decimal point over 2 places to the left. then multiply. so, 1425 * 375</span> = 53.44

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3 years ago

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Irina18 [472]

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Step-by-step explanation:

Information given

$\bar X$ represent the sample mean for the sample

$\mu$ population mean

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n represent the sample size

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The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

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$n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67$

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3 years ago