1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
cupoosta [38]
2 years ago
15

The ratio of teachers to male students to female students in a school is 3:17:18 if the total number of students in the school i

s 630 determine the number of teachers in the school
Mathematics
1 answer:
Artist 52 [7]2 years ago
8 0

Answer: 54

Step-by-step explanation:

First we add 17 plus 18 to dins total number of students I got 35

Then we make ratio

3/35

So we know we have total number of 630 kids then we make a ratio with no teacher so x

X/630

Lin both together then done ☑️

You might be interested in
The frequency table shows how many visits to the library students in a school have made in the last month.
vfiekz [6]
<h3>Answer:  2.8</h3>

=======================================================

Explanation:

Multiply each visit count with their corresponding frequency.

Examples:

  • 0*12 = 0 for the first row.
  • 1*366 = 366 for the second row
  • 2*53 = 106 for the third row

and so on...

I recommend making a third column like this

\begin{array}{|c|c|c|} \cline{1-3}\text{Visits} & \text{Frequency} & \text{Visits*Frequency}\\\cline{1-3}0 & 12 & 0\\\cline{1-3}1 & 366 & 366\\\cline{1-3}2 & 53 & 106\\\cline{1-3}3 & 52 & 156\\\cline{1-3}4 & 155 & 620\\\cline{1-3}5 & 243 & 1215\\\cline{1-3}\end{array}

That way you can keep track of all the results in an organized way.

Then add everything in the third column

0+366+106+156+620+1215 = 2463

Divide this sum over the total frequency (12+366+53+52+155+243 = 881) and we'll get the mean

2463/881 = 2.7956867

Rounding to one decimal place gets us to 2.8 as the final answer.

-------------

The much longer way to do this is to imagine 12 copies of "0", 366 copies of "1", 53 copies of "2", and so on. We'll have an extremely large data set of 881 items inside it. As you can see, this second method is definitely not recommended to actually carry out. Rather it's helpful to have this as a thought experiment to see why we revert to multiplication instead.

Eg: Imagine adding 155 copies of "4". A shortcut is to simply say 4*155 = 620

4 0
1 year ago
Read 2 more answers
My watch is 5 minutes slow, but i think it is 3 minutes fast. I arrive 'on time' according to my calculations to catch the 1:15
faltersainse [42]
1:15 pm + 5 minutes =1:20 PM  You add 5 minutes because your watch is slow then subtract 3 minutes because you thought the watch was 3 minutes fast. real time is 1:17 PM
 1:20 pm  - 3 minutes = 1:17 PM
4 0
3 years ago
02:42:33
jeyben [28]

Answer:    -10

Step-by-step explanation:

It is -10 because you have to switch the order of operations to get negative.

Hope it helps!

6 0
3 years ago
Find the slope of the line containing the pair of points (4,8), (9,-4)
Papessa [141]

The given points are (4,8) & (9,-4)

slope of a line =  <u>Y2 - Y1</u>

                            X2 - X1


              ====>   <u>(-4) - 8</u>   =    <u>-12</u>

                            9   - 4           5

6 0
3 years ago
Read 2 more answers
Select the expression that is equivalent to the following:<br> 12^-6 × 12^-5
Radda [10]
The solution to this problem is 743008370688
5 0
3 years ago
Other questions:
  • Whats the circumfrence of a cupcake. show all working
    14·1 answer
  • Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x??
    8·1 answer
  • Given that €1 =£0.72 a) how much is €410 b) what is the £ to € exchange rate ?
    6·1 answer
  • Yogi is 6 years older than Michelle. The sum of their ages is 26. Write a system of linear equations to represent this informati
    12·1 answer
  • Evaluate. Please help:) thank you
    11·1 answer
  • Express sin A as a ratio of the lengths of the sides
    8·1 answer
  • Write the equation of a line in slope intercept form.<br> (-3,-9 ) and (2,6)
    15·1 answer
  • PLEASE ANSWER THIS AS SOON AS POSSIBLE
    6·2 answers
  • How many kilometers are there in 4 miles?
    14·1 answer
  • Can you solve please -8(0.09) (-0.5)=?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!