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
sashaice [31]
3 years ago
13

eryn and seven of her freinds go out to lunch the bill comes out 143.35 and they leave a 15% tip how much does each freind contr

ibute
Mathematics
1 answer:
babunello [35]3 years ago
7 0

Answer:

$ 23.55

Step-by-step explanation:

143.35*.15=21.5025 + 143.35 = $164.8525/7 = $ 23.5503571429

You might be interested in
The Wall Street Journal Corporate Perceptions Study 2011 surveyed readers and asked how each rated the Quality of Management and
kykrilka [37]

Answer:

The calculated χ² =  <u>17.0281</u>    falls in the critical region χ² ≥  9.49  so we reject the null hypothesis that  the quality of management and the reputation of the company are independent and conclude quality of management and the reputation of the company are dependent

The p-value is 0 .001909. The result is significant at p < 0.05

Part b:

40 > 8.5

35> 7.5

25> 4

Step-by-step explanation:

1) Let the null and alternative hypothesis as

H0: the quality of management and the reputation of the company are independent

against the claim

Ha: the quality of management and the reputation of the company are dependent

2) The significance level alpha is set at 0.05

3) The test statistic under H0 is

χ²= ∑ (o - e)²/ e where O is the observed and e is the expected frequency

which has an approximate chi square distribution with ( 3-1) (3-1)=  4 d.f

4) Computations:

Under H0 ,

Observed       Expected E              χ²= ∑(O-e)²/e

40                      35.00                          0.71

25                      24.50                         0.01

5                         10.50                         2.88  

35                      40.00                         0.62

35                      28.0                          1.75

10                       12.00                           0.33  

25                      25.00                             0.00

10                        17.50                              3.21

<u>15                       7.50                                 7.50  </u>

<u>∑                                                               17.0281</u>

     

     

Column Totals 100 70 30   200  (Grand Total)

5) The critical region is χ² ≥ χ² (0.05)2 = 9.49

6) Conclusion:

The calculated χ² =  <u>17.0281</u>    falls in the critical region χ² ≥  9.49  so we reject the null hypothesis that  the quality of management and the reputation of the company are independent and conclude quality of management and the reputation of the company are dependent.

7) The p-value is 0 .001909. The result is significant at p < 0.05

The p- values tells that the variables are dependent.

Part b:

If we take the excellent row total = 70 and compare it with the excellent column total= 100

If we take the good row total = 70 and compare it with the good column total= 80

If we take the fair row total = 50 and compare it with the fair column total= 30

The two attributes are said to be associated if

Thus we see that ( where (A)(B) are row and columns totals and AB are the cell contents)

AB> (A)(B)/N  

40 > 1700/200

40 > 8.5

35> 1500/200

35> 7.5

25> 800/200

25> 4

and so on.

Hence they are positively associated

8 0
3 years ago
How should you write the proportion 9:36 = 10:40 using words?
JulijaS [17]
A, because you follow the numbers and just put "is to" and "as" in the middle. 

8 0
2 years ago
Read 2 more answers
What is the slope of a line that passes through the points (-8, 14) and (4,-4)?
Simora [160]

Answer:

the answer is -3/2

Step-by-step explanation:

Trust me its correct

pls mark me as brainliest

4 0
2 years ago
Simplify the expressions<br> (a^2b^-3/a^-2b^2)^2
poizon [28]

Answer:

(\frac{a^{2}b^{-3}  }{a^{-2}b^{2}  })^{2}  = (a^{2-(-2) }b^{-3 - 2})^{2} \\ = (a^{4}b^{-5} )^{2}  = (a^{4})^{2} (b^{-5})^{2}  = a^{8}  b^{-10}

Here is for you.

Step-by-step explanation:

6 0
3 years ago
Subtract the linear expressions.
Alinara [238K]

Answer:

:^

Step-by-step explanation:

  • sorry I couldn't type the equation so I took a screenshot

5 0
2 years ago
Read 2 more answers
Other questions:
  • Driving on the highway, you can safely drive 60 miles per hour. “How far can you drive in ‘h’ hours?” What is the range of the f
    5·1 answer
  • Frankie kept track of the total number of goals scored during the season by his soccer team. Frankie's graph shows that after tw
    13·2 answers
  • On a graph with y values ranging from 1020 to 9192 what is a reasonable scale to use on a y axis with 10 marks?
    9·1 answer
  • Adolf earned 650 last week he paid 97.50 in federal income tax he paid one third that amount for state income tax and other taxe
    14·1 answer
  • 16 km<br> d) radius =<br> diameter =
    12·1 answer
  • Which one of the following U.S. customary units of volume is closest to 4 liters in volume? 64cups , 16quarts, 512 fluid ounces,
    12·1 answer
  • Original price of concert tickets: $100.00 Discount: 21% - What is the sale price
    8·1 answer
  • What is the questians awnser
    7·1 answer
  • Which expression is equivalent to 4/5?
    15·1 answer
  • What is the third significant figure of 0.134​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!