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
son4ous [18]
3 years ago
12

What is the mean average 14, 12, 9, 2, 3, 1, 1 10,10,10,5,9,12,12,24,8,31,3,10

Mathematics
1 answer:
Orlov [11]3 years ago
5 0

Answer:

20.89

Step-by-step explanation:

x f fx

1 6 6

2 4 8

3 5 15

4 3 12

5 3 15

6 2 12

8 1 8

9 2 18

10 4 40 average=fx/f

12 3 36 = 961/46

14 2 28 = <u>20.89</u>

19 1 19

24 1 24

26 1 26

31 1 31

32 1 32

56 1 56

67 1 67

100 1 100

102 1 102

150 1 150

156 1 156

total: <em>46</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>961</em>

You might be interested in
James is participating in a 5-mile walk to raise money for a charity
mr Goodwill [35]
What is the question...?
8 0
3 years ago
Read 2 more answers
Gunther's starting weight is 248 pounds, and he plans to lose 2 pounds each week. Use a linear equation to determine Gunther's w
n200080 [17]

Answer:

......

Step-by-step explanation:

With these types of problems, it's best to label the unknowns and figure out an equation for what we want to find. Here, we're interested in weight in pounds, which I'll call W, as a function of the number of weeks that have gone by, which I'll call n. So if we can get an equation that relates W to n, we can answer the question of "how many weeks to reach 175 pounds?" by plugging in W = 175 to our equation and solving to find out what value of n gives us that.

Suppose Alex weighs P pounds at the start of his diet. We don't know what P is yet, but we'll aim to find its value later with the information the question gives us.

After 1 week, Alex will lose 2 pounds and will weigh P - 2 pounds

After 2 weeks, Alex will lose another 2 pounds and weigh (P - 2) - 2 = P - 4 pounds

After 3 weeks, Alex will weigh (P - 4) - 2 = P - 6 pounds

You can see the pattern here: after every week, knock off 2 pounds. So in general after n weeks, Alex will lose 2n pounds from his start weight, and he will weigh P - 2n

That gives the equation W = P - 2n, or equivalently

W = -2n + P

We can recognize this as a linear equation, which takes the form y = mx + b, where:

- x is the independent variable,

- y is the dependent variable (the thing that changes as a function of x),

- m is the slope (how much y changes for every unit change in x), and

- b is the y-intercept (that is, the value of y when x = 0).

In our equation W = -2n + P, the number of weeks n is the independent variable, weight W is the dependent variable (it varies as a function of the number of weeks), -2 is the slope (because Alex weight 2 pounds less for every week that goes by), and P - whose value we don't know yet - is Alex's starting weight (i.e., the value of W when n = 0).

To find the value of P, we can use the information in the question that after 6 weeks, Alex weighs 205 pounds. In other words, when n = 6, W = 205. Plug that into our equation and get:

205 = P - 2*6

We can solve that for P:

205 = P - 12

Add 12 to both sides:

P = 205 + 12 = 227

So Alex weighs 227 pounds when he starts the diet, and we have

W = -2n + 227

This is the linear equation the question is asking for.

To find how many weeks Alex needs to reach his target weight of 175 pounds, set W = 175 in the equation and solve it for n:

175 = -2n + 227

Move the -2n over to the other side:

2n + 175 = 227

Subtract 175 from both sides:

2n = 227 - 175

2n = 52

Divide both sides by 2:

2n/2 = 52/2

n = 26

So if he keeps losing 2 pounds per week, Alex will reach his target weight of 175 pounds after 26 weeks.

Of course in real life weight loss doesn't necessarily work like in this question (usually, the rate of loss slows down closer to the goal and the body adapts to eating less). But for the purposes of this question and with this simple linear model of weight loss, Alex would reach his goal weight in half a year.

8 0
2 years ago
Jake sold 12 candy bars. Holly sold three times as many as Jake. How many candy bars did they sell combined?
otez555 [7]
48 candy bars since three times twelve is thirty six plus twelve equals 48.
6 0
3 years ago
Read 2 more answers
Convert 7.34 X 10-3 kg to mg
marissa [1.9K]

Answer:

51380000 mg

Step-by-step explanation:

10 - 3 = 7

7.34 x 7 = 51.38

1 kg = 1000000 mg

51.38 x 1000000 = 51380000

3 0
2 years ago
-3x-9+15x<br> Please help asap
Tcecarenko [31]

Answer:

= 0.75

Step-by-step explanation:

-3x-9+15x = 0

12x = 9

x = 3

4

= 0.75

6 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ME <br><br><br> The question in in the picture
    9·1 answer
  • What is 28,550,000,000 rounded to the nearest billion thanks for the help 
    10·1 answer
  • Add 1/4 and 5/8 by using the giant one to create a common denominator <br> thanks
    11·1 answer
  • Cassie has 8 red marbles and 12 yellow marbles. Her mom doubles her red and yellow marbles for her birthday. Use the distributiv
    7·2 answers
  • Predict the number of sales in month 5? help ASAP please
    7·1 answer
  • What is the surface area of this design?
    13·1 answer
  • What is the base of the expression 11^12?<br><br> 3<br> 11<br> 12<br> 21
    6·2 answers
  • 3 = c/-11 Help me with this please.
    15·1 answer
  • SOMEONE PLEASE HELP ME<br><br> Geometry <br> Lesson 1.1 Practice
    9·2 answers
  • What is the answer to 346*89? <br>Just a random question.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!