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Aliun [14]
3 years ago
11

Solve for p. 2(p + 3) = 20

Mathematics
2 answers:
guapka [62]3 years ago
3 0

Answer:

p=7

Step-by-step explanation:

zimovet [89]3 years ago
3 0

Answer:

<h3>p =7</h3>

Step-by-step explanation:

2(p + 3) = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2\left(p+3\right)}{2}=\frac{20}{2}\\\\Simplify\\p+3=10\\\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\p+3-3=10-3\\\\Simplify\\p=7

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A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%
OleMash [197]

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Step-by-step explanation:

<u>Step :- (i)</u>

Given sample size 'n' =15

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<u></u>(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )<u></u>

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(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )

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the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

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