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3 years ago

The quotient of a number and ten increased by five

2 answers:

5 0

"quotient" = answer to a division problem
"increased by" = indicates the operation of addition

Let's allow the variable "n" represent the number. Since we are looking for the quotient of a number and 10, this means we must divide n by 10. Since we are increasing the answer of this expression by 5, we must add 5.

$\frac{n}{10}+5$

Svetach [21]3 years ago

3 0

X/10+5 because it says the quotient which means dividee'd by and a number I use x and then increased by 5 means +5 Hope this helps!=)

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Does anyone know this one?

iogann1982 [59]

It's A.

18 correlates with $350 and 12 correlates with $520.
That crosses off B and D.

18 + 12 days combined equals 30.
That excludes C and D.

A is your answer! :D

6 0

3 years ago

I have many students are represented in the data set?

nalin [4]

Answer:

a) 19 students

b) the mean 3 9/19

the median 3

the mode 3

c) the range 6

Step-by-step explanation:

The data set shows that

0 points gets 1 student,

1 point gets 1 student,

2 points get 2 students,

3 points get 6 students,

4 points get 4 students,

5 points get 3 students and

6 points get 2 students.

a) There are 1+1+2+6+4+3+2=19 students.

b) The mean is

$\dfrac{1\cdot 0+1\cdot 1+2\cdot 2+6\cdot 3+4\cdot 4+3\cdot 5+2\cdot 6}{19}=\dfrac{66}{19}=3\dfrac{9}{19}.$

The average score is 3 9/19 points.

The median is 10th term in the data set - 3 points (means the middle score in the data set)

The mode is 3 points (means most happened score)

c) The range of the data is 6-0=6 points.

7 0

3 years ago

A total of 1482 earthquakes occurred in a 7-day period at the end of April

topjm [15]

Answer:

211.7 Per Day 8.8 Per Hour

Step-by-step explanation:

First you do 1482/7 which gives you an average for each day (211.7)

Then you take 211.7 and divide that by 24 because there are 24 hours in a day and doing so would give you 8.8

6 0

3 years ago

Simplify the following expression using only positive exponents. Help please!? It has to be only positive exponents the -9/7t an

wlad13 [49]

(-9t^25) / (7t^26) = -9 / (7t)

8 0

3 years ago

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

Paha777 [63]

Correct Answer:
Option A. 0.01

Solution:
This is a problem of statistics and uses the concept of normal distributions. We need to convert the score of 90 into z-score and then find the desired probability from standard normal distribution table.

Converting 90 to z-score:

$z= \frac{90-83.6}{ \frac{8.7}{ \sqrt{10}} }=2.33$

Now we are to find the probability of z score being more than 2.33. From the z-table the probability comes out to be 0.01.

Therefore, we can conclude that the probability of class average is greater than 90 is 0.01.

4 0

3 years ago