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
Fynjy0 [20]
2 years ago
15

The information below shows how many text messages two sisters send each week. Emilia's information is on the ratio table and Mi

randa's is shown with an equation. Determine which sister sends the most text messages. How many more text messages does this sister send per week?
Mathematics
2 answers:
andrew-mc [135]2 years ago
3 0
Hello! Can I see the graph?
gogolik [260]2 years ago
3 0

Answer:

where is the graph?

You might be interested in
The market and Stock J have the following probability distributions:
denis-greek [22]

Answer:

1) E(M) = 14*0.3 + 10*0.4 + 19*0.3 = 13.9 \%

2) E(J)= 22*0.3 + 4*0.4 + 12*0.3 = 11.8 \%

3) E(M^2) = 14^2*0.3 + 10^2*0.4 + 19^2*0.3 = 207.1

And the variance would be given by:

Var (M)= E(M^2) -[E(M)]^2 = 207.1 -(13.9^2)= 13.89

And the deviation would be:

Sd(M) = \sqrt{13.89}= 3.73

4) E(J^2) = 22^2*0.3 + 4^2*0.4 + 12^2*0.3 =194.8

And the variance would be given by:

Var (J)= E(J^2) -[E(J)]^2 = 194.8 -(11.8^2)= 55.56

And the deviation would be:

Sd(M) = \sqrt{55.56}= 7.45

Step-by-step explanation:

For this case we have the following distributions given:

Probability  M   J

0.3           14%  22%

0.4           10%    4%

0.3           19%    12%

Part 1

The expected value is given by this formula:

E(X)=\sum_{i=1}^n X_i P(X_i)

And replacing we got:

E(M) = 14*0.3 + 10*0.4 + 19*0.3 = 13.9 \%

Part 2

E(J)= 22*0.3 + 4*0.4 + 12*0.3 = 11.8 \%

Part 3

We can calculate the second moment first with the following formula:

E(M^2) = 14^2*0.3 + 10^2*0.4 + 19^2*0.3 = 207.1

And the variance would be given by:

Var (M)= E(M^2) -[E(M)]^2 = 207.1 -(13.9^2)= 13.89

And the deviation would be:

Sd(M) = \sqrt{13.89}= 3.73

Part 4

We can calculate the second moment first with the following formula:

E(J^2) = 22^2*0.3 + 4^2*0.4 + 12^2*0.3 =194.8

And the variance would be given by:

Var (J)= E(J^2) -[E(J)]^2 = 194.8 -(11.8^2)= 55.56

And the deviation would be:

Sd(M) = \sqrt{55.56}= 7.45

8 0
3 years ago
8x2 + 7x - 4 <br> what is the factor
astraxan [27]

Answer:

19

Step-by-step explanation:

I think im wrong but give it a try

5 0
3 years ago
A water pipe is 4 7/12 feet beneath the surface of the road. What is the elevation of the pipe, in feet, expressed as a decimal?
Andrej [43]
The answer is C. U just have to divide 7 and 12 to get your decimal
8 0
3 years ago
PLS HELP ILL MARK YOU AS BRAINLIEST
Alenkasestr [34]

Answer:

a= 78

Step-by-step explanation:

To solve subtract:

180-102= 78

Hope this helps!

4 0
2 years ago
Read 2 more answers
The millers drove 150 miles in 3 hours at what rate how long will it take them to drive 400 miles
valentina_108 [34]
Rate = (150 miles)/(3 hrs) = 50 mph

so . . .

(50 mph)*(time) = 400 miles

*divide both sides by 50 mph

time = (400 miles)/(50 mph) = 8 hrs

time = 8 hrs
8 0
3 years ago
Read 2 more answers
Other questions:
  • How much liquid will fit in the glass shown? Round your answer to the nearest hundredth.
    5·1 answer
  • Negative ten is not than two times a number plus fourteen
    8·1 answer
  • ,s.richards gave her class minutes to read. alex read 9 1/3 pages in that time. At this rate, how many pages will alex read per
    14·1 answer
  • If Camillo goes with the better buy, how much will he pay for the 25 loaves of bread that he needs for the gourmet peanut butter
    11·2 answers
  • Whats two - two + its very easy
    12·2 answers
  • List the angles in order from smallest to largest.
    8·1 answer
  • Is 20 a prime or composite number.​
    6·2 answers
  • I NEED HELP FAST, TY AND PLS!
    12·1 answer
  • 12.6^2 - 0^2 / 2 x 16 =
    9·1 answer
  • 4. Find the following angles(7 points):
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!