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4 years ago

Find the most important variable in the problem.

Mathematics

1 answer:

natali 33 [55]4 years ago

3 0

Answer:

Step-by-step explanation:

Let

x = the number of phone available

If it would require 8 more phones, then the total number of phones will be x + 8.

A company hired an additional 12 employees, and every employee needed a phone, then

x + 8 = 12

x = 4

This means 4 phones were available (and 8 more needed to total in 12 phones for 12 new employees)

Hence, correct option is option A.

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Can someone help me with 12

Gwar [14]

Answer:

5p+4>14 (A)

Step-by-step explanation:

Open dot means that the value is not included.

8 0

3 years ago

The variance of the scores on a skill evaluation test is 143,641 with a mean of 1517 points. If 343 tests are sampled, what is t

Vlad1618 [11]

Answer:

The probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

Step-by-step explanation:

We are given that

The variance of the scores on a skill evaluation test=143,641

Mean=1517 points

n=343

We have to find the probability that the mean of the sample would differ from the population mean by less than 36 points.

Standard deviation, $\sigma=\sqrt{143641}$

$P(|x-\mu|$

$=P(|Z|$

$=0.9216$

Hence, the probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

5 0

3 years ago

At Silver Gym, membership is $25 per month and personal training sessions are $30 each. At Fit Factor membership is $65 per mont

slamgirl [31]

Answer:

4 personal training sessions

Step-by-step explanation:

You would first create 2 expressions, one to represent each situation

Silver Gym: 25 + 30x

Fit Factor: 65 + 20x

Then if you want to find when the costs would equal each other, set them equal to each other.

25 + 30x = 65 + 20x

Then solve:

25 + 30x - 20x = 65 + 20x - 20x

25 + 10x = 65

25 - 25 + 10x = 65 -25

10x = 40

10x / 10 = 40 / 10

x = 4

She will have to attend 4 personal training sessions to make the total cost at the two gyms equal.

6 0

4 years ago

Mr. Rowley has 16 homework papers and 14 exit tickets to return. Ms. Rivera has 64 homework papers and 60 exit tickets they have

yarga [219]

16:64 (Rowley to Rivera homework ratio)
14:60 (Rowley to Rivera exit ratio)

The ratios aren't equivalent because when they are simplified, the first ratio is 1:4, and the second is 7:30, thus meaning they aren't equal.

4 0

4 years ago

Read 2 more answers

Please help, find the slope

Olenka [21]

Answer:

slope

Step-by-step explanation:

3 0

3 years ago