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3 years ago

Help I need to get this

Mathematics

1 answer:

Mariulka [41]3 years ago

8 0

Which of the following is NOT discussed in this excerpt?

One can follow certain steps to learn to improve the quality of one’s life.

Men are too easily lured by monetary gain.

Authors have not addressed how humankind should earn a living through their literature.

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A library ordered 956 new books. They ordered 12 times as many mystery books as romance. They ordered 52 more science fiction bo

Nataly_w [17]

Answer:

Romance books ordered = 65

Mystery books ordered = 775

Science Fiction book Ordered ≈ 116

Step-by-step explanation:

Total number of books ordered in the library = 956

Let us assume the number of romance books ordered = m

⇒Number of mystery books ordered = 12 x (Number of romance books)

= 12 x(m) = 12 m

Also,number of science books ordered = 52 +(Number of romance books)

= 52 + m

Now, according to the question:

Number of { romance books + mystery books + science books} = 956

or, m + ( 12 m ) + (52 + m) = 956

or, 14 m = 956 - 52

or, 14 m = 904

⇒ m = 904/ 14 = 64.6

So, the number of romance books ordered = 64.6 ≈ 65

Number of mystery books ordered = 12 m = 12 x 64.5 = 775

Number of science fiction book ordered = = 52 + m = 116.6 ≈ 116

7 0

3 years ago

How do you find the standard deviation of mean 200?

stira [4]

Answer:

Step-by-step explanation:

Hope it helps, please give me Brainlest!

5 0

3 years ago

Need help will mark brainliest...

Xelga [282]

Answer:

Step-by-step explanation:

Step-by-step explanation:

The given data set is:

Week 1: 600

Week 2: 300

Week 3: 500

Week 4: 900

The following are the steps to find the standard deviation:

Step 1. Jim enters the data and calculates the average or mean.

Step 2. Jim calculates the deviation from the mean by subtracting the mean from each value.

Data value (x)

600 25

300 -275

500 -75

900 325

Step 3. Jim squares each deviation to remove negative signs.

Data value (x)

600 625

300 75625

500 5625

900 105625

Step 4. Jim sums the squares of each deviation and divides by the count for the variance.

Step 5.Jim takes the square root of the variance to find the standard deviation.

4 0

3 years ago

Which list shows three solutions to the inequality?

Nina [5.8K]

Answer:

none are solutions unless you meant for it to be less than or equal to, which in that case itd be 22, 24, 26

Step-by-step explanation:

3 0

3 years ago

If the straight line passing through A(-7, -5) and B(-3, x) is parallel to another straight line of slope 2, find the value of x

Ostrovityanka [42]

X=3; you can set up a proportion using the slope equation. So (y[sub2]-y[sub1])/(x[sub2]-x[sub1])=2/1 then plug in the values and simplify. Then cross multiply and solve for x. Rest of work shown in the picture

8 0

3 years ago

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