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2 years ago

Sofia's gym membership is $275 per year on addition to an annual locker fee of $95. What is the monthly fee

Mathematics

1 answer:

AysviL [449]2 years ago

6 0

275+95=370

370/12=30.83

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What percent of 63.8 is 37.8?

lakkis [162]

To find percentage, you take 37.8 and divide it by 63.8 then multiply by 100

(37.8/63.8) × 100 = 59.25%

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3 years ago

bill earnes $45 at Happy Days Drive-In. He spent 1/3 of the money on gas for his car and 1/5 of it on flowers for his girlfriend

tigry1 [53]

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3 years ago

Write an equation of the line that passes through (2, -3) and is perpendicular to the line y=-2x-3

Natalija [7]

Answer:

$y=\frac{1}{2} (x-2)-3$ or $y=\frac{1}{2} x-4$

Step-by-step explanation:

The perpendicular slope is the opposite-reciprocal of the original slope:

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Write the equation in point-slope form ( $y=a(x-h)+k$ ):

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3 years ago

Read 2 more answers

Which of the following expressions has a coefficient of 10 and a constant of 5

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Third option is correct

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3 years ago

Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n equals

Alekssandra [29.7K]

Answer:

(0.767,0.833)

Step-by-step explanation:

The 95% confidence interval for population proportion p can be computed as

$p-z_{\frac{\alpha }{2} } \sqrt{\frac{pq}{n} }$

The z-value associated with 95% confidence level is 1.96.

whereas p=x/n

We are given that x=440 and n=550.

p=440/550=0.8

$0.8-1.96\sqrt{\frac{0.8(0.2)}{550} }$

$0.8-1.96\sqrt{\frac{0.16}{550} }$

$0.8-1.96\sqrt{0.00029 }$

$0.8-1.96(0.01706)$

$0.8-0.03343$

$0.76657$

Thus, the required confidence interval is

0.767<P<0.833 (rounded to 3 decimal places)

Hence, we are 95% confident that our true population proportion will lie in the interval (0.767,0.833)

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3 years ago