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2 years ago

What was her mean score?

Mathematics

2 answers:

denis-greek [22]2 years ago

6 0

Answer:

154 is the mean

Step-by-step explanation:

First, you will add up all the numbers. This will give you a total of 770, then you have to divide the number, which is 5. So 770 ÷ 5 = 154.

I Hope This Helped :D

3241004551 [841]2 years ago

4 0

Answer:

154

Step-by-step explanation:

You can find the mean, or average, of a data set in two simple steps:

1. Find the sum of the values by adding them all up.

2. Divide the sum by the number of values in the data set.

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Jet001 [13]

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8 0

3 years ago

Dana can type nearly 90 words per minute. Use this information to find the number of hours it will take her to type 2.6 x 105 wo

Vlad1618 [11]

Dana can type 90 words per minute.

Since, 1 minute = $\frac{1}{60}$ hours

Therefore, number of words she can type = $\frac{90}{\frac{1}{60}}$

= 90×60

= 5400 words per hour

If she types $2.6\times 10^5$ words in 'x' hours.

Number of words Dana types with the given speed in 'x' hours = Speed of typing × Time

= $5400\times x$

Therefore, $5400\times x =2.6\times 10^5$

$5400x=260000$

$x=\frac{260000}{5400}$

$x=48.15$ hours

Therefore, Dana types $2.6\times 10^5$ words in 48.15 hours.

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brainly.com/question/621754

6 0

3 years ago

Simplify.

UkoKoshka [18]

(x^2 - 3x + 1) - (x^2 + 2x + 7)
Distribute the negative
x^2 - 3x + 1 - x^2 - 2x - 7
Combine like terms
-5x - 6

3 0

3 years ago

Which of the following are true

Eva8 [605]

I cannot see the question

6 0

3 years ago

PLS HELP TIMED QUIZ The size of a television screen is given as the length of the diagonal. If a television is advertised as hav

grin007 [14]

Answer:

D.24

Pythagorean states:

hypotenuse^2 = side1^2 + side2^2

30^2 = 18^2 + side2^2

side2^2 = 30^2 - 18^2

side2^2 = 900 - 324

side2^2 = 576

side2 = sqr root 576

side2 = 24

Source: http://www.1728.org/pythgorn.htm

Step-by-step explanation:

5 0

3 years ago