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3 years ago

richie has a rug in his bedroom with a perimeter of 42 feet. the length of the rug is 12 feet what is the width of the rug

Mathematics

1 answer:

Usimov [2.4K]3 years ago

8 0

The width of the rug is 9 feet.

Step-by-step explanation:

Perimeter of rug = 42 feet

Lengths are same in square and rectangle shapes; therefore;

Length of rug = 12 feet

Width of rug = w

Perimeter = Length + Length + Width + Width

Perimeter = $12+12+w+w$

$42=24+2w\\42-24=2w\\18=2w\\2w=18$

Dividing both sides by 2

$\frac{2w}{2}=\frac{18}{2}\\w=9$

The width of the rug is 9 feet.

Keywords: perimeter, division

Learn more about division at:

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Data given and notation

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$s=12000$ represent the sample standard deviation

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$\alpha$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

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What are H0 and Ha for this study?

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$z=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

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We can replace in formula (1) the info given like this:

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Conclusion

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