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2 years ago

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A teacher shares pencils among his three students Anne, Lucy and John. Anne gets 5 times as many pencils as Lucy, and Lucy gets

2 pencils less than John. Suppose John gets x pencils, how many pencils does Anne get in terms of x?

1 answer:

Anna [14]2 years ago

7 0

Answer:

step back u idiot

Step-by-step explanation:

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-9 + k/10 = -10<br>I need to answer

Firdavs [7]

Answer:

k = -10

Step-by-step explanation:

-9 + k/10 = -10

-10/10 = -1

-9 + -1 = -10

k = -10

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3 years ago

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Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit

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Answer: sry just trying to get points

Step-by-step explanation:

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3 years ago

75 is 25% more than 60, but 60 is 20% less than 75, explain why?

xxMikexx [17]

Answer:

Explanation:

15 goes into 60, 4 times (1 fourth is equal to 25%).

15 goes into 75, 5 times (1 fifth is equal to 20%)

So 75 is one fifth more because it has a value of 15 more, and 60 is 1 fourth less than 75 because its value is more minuscule and less is more.

If you don't understand this was quite the challenge to explain.

4 0

3 years ago

Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random

Katen [24]

Answer:

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

Step-by-step explanation:

Given

$n = 200$

$x_1 = 34$ -- City C

$x_2 = 54$ --- City K

Required

Determine the 90% confidence interval

This is calculated using:

$CI = \bar x \± z\frac{\sigma}{\sqrt n}$

Calculating $\bar x$

$\bar x = \bar x_1 - \bar x_2$

$\bar x = \frac{x_1}{n} - \frac{x_2}{n}$

$\bar x = \frac{34}{200} - \frac{54}{200}$

$\bar x = 0.17 - 0.27$

For a 90% confidence level, the z-score is 1.65. So:

$z = 1.65$

Calculating the standard deviation $\sigma$

$\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }$

So:

$\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }$

$\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}$

So:

$CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}$

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

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2 years ago

The equation of circle C is (x-8)^2+(y+3)^2=49. Find the center and radius of circle C.

Dominik [7]

C is the best option and compare it with the equation of circle to get values

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2 years ago

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