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Korvikt [17]
2 years ago
10

2/7+1/7+1/7= answer plss

Mathematics
2 answers:
Gnom [1K]2 years ago
7 0

Answer:

2÷7+1÷7+1÷7 = 0.57142857142

Leya [2.2K]2 years ago
6 0

Answer:

\frac{4}{7}

Step-by-step explanation:

\frac{2}{7} + \frac{1}{7} + \frac{1}{7}

= \frac{2+1+1}{7}

= \frac{4}{7}

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Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.47 and a standard deviation of 1.5. U
alex41 [277]

Answer:

2.5% of American women have shoe sizes that are greater than 11.47.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 8.47

Standard deviation = 1.5

The normal distribution is symmetric, which means that half the measures are below the mean, and half are above the mean.

What percentage of American women have shoe sizes that are greater than 11.47?

11.47 = 8.47 + 2*1.5

This means that 11.47 is two standard deviations above the mean.

Of those measures below the mean, none are greater than 11.47.

Of those measures above the mean, 95% are between the mean and 11.47, and 5% are above. So

0.5*0.05 = 0.025

2.5% of American women have shoe sizes that are greater than 11.47.

8 0
3 years ago
Plz plz help me on number 6 plz plz help
tigry1 [53]
The answer would actually be A because if you make 3 1/4 a mixed number you would get 13/4 which equals 3.25. Now divide 3.25 by 4 because you will dividing these pizzas to 4 people. This gives me 0.8125. Then I would multiply 1/4 to 3.3125 which gives me 0.203125 and when you make this to an improper fraction it will come out to be 13/64 which is choice A. I hope this helps you! I am also sorry for what happened yesterday. 
3 0
3 years ago
For a ride on a rental scooter, John paid an $8 fee to start the scooter plus 6 cents per minute of the ride. The total bill for
enot [183]

The linear equation is 8+0.06x=19.94 and John rode the scooter for 199 minutes.

Fee to start the scooter = $8.

Fee to ride per minute = 6 cents = $0.06.

Total bill = $19.94.

Let x be the minutes for which he rides the scooter.

The linear equation is formed as:

8+0.06x=19.94

0.06x=19.94-8

0.06x=11.94

x=199 minutes.

So, John rode the scooter for 199 minutes.

Learn more about linear equation here:

brainly.com/question/24794429?referrer=searchResults

5 0
2 years ago
Read 2 more answers
Solve for r in terms of C
LUCKY_DIMON [66]

Answer:

C / ( 2 pi) = r

Step-by-step explanation:

C = 2 pi r

Divide each side by 2 pi

C /2 pi= 2 pi r / 2 pi

C / ( 2 pi) = r

4 0
3 years ago
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CORRECT ANSWER GETS BRAINLIEST. Complete the square and find the answer! I genuinely need help so please only answer if you know
brilliants [131]

Answer:

+49=(x+ 7)^2

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7 0
3 years ago
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