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
Stella [2.4K]
2 years ago
8

Janelys needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer fo

r 5.75 hours and charged her $168 for parts. The total was $426.75. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Mathematics
1 answer:
Sav [38]2 years ago
6 0

Answer: x = 45

Step-by-step explanation:

You might be interested in
Evaluate the expression 100 - 9(d + 6) for d = 2. *
alexdok [17]
100-9(2+6)=100-9(8)=100-72=
so the answer is 28
3 0
3 years ago
Read 2 more answers
Which statement best describes Georgia’s Barrier Islands?
NemiM [27]

The statement that best describes Georgia’s Barrier Islands is; A: They protect the coastline during storms.

<h3>What is the correct statement about the place?</h3>

Barrier islands are called “barrier islands” due to the fact that they are good means of creating barrier between the mainland and the ocean.

Now, these barrier islands tend to shelter and protect the mainland from the powerful forces of wind, waves, and other natural disasters.  This they do by;

  • Sheltering the estuaries that form behind the barriers.
  • Allowing marshes to build up in the quiet waters of the sound.
  • Filtering of the pollutants that come in from mainland rivers by the marshes.
  • Providing valuable habitats for water animals and others in that ecosystem.
  • Serve aesthetic purposes

Barrier islands are a very much valuable resource. Despite the fact that they constantly change and may become badly eroded, they can still rebuild if left alone.

Thus, we can conclude that statement best describes Georgia’s Barrier Islands is that they protect the coastline during storms.

Read more about Correct statement at; brainly.com/question/25800832

#SPJ1

4 0
2 years ago
David and Jillian are playing a board game together. Jillian wants to trade her wool cards for David's ore cards. The double num
Keith_Richards [23]

Answer:

the answer is 62

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
121 is increased to 321 percent of change
valina [46]

Answer: This is the percentage increase.

Step-by-step explanation:

265.28925619834706%

7 0
3 years ago
Pschological tests are often used to determine the hostility levels in people. High scores on the HLT pschological test correspo
algol13

Answer:  the correct answer is we are 95% confident that there is no statistically significant difference in the mean treatment  methods for hostility.  

Step-by-step explanation:

1)  Test for the equality of variances in the two groups to choose the appropriate t-test.  

H0: σ (1)^2 = σ (2)^2  

Ha: σ (1)^2 ≠ σ (2)^2  

Larger variance = 64  

Smaller variance = 49  

F = 1.30612  

Degrees of freedom 15 and 9  

Critical F from the table (with alpha=0.05) = 2.58  

Calculated F is smaller than critical F, so we use the pooled variance t-test.  

Sample 1 size 7  

Sample 2 size 8  

Sample 1 mean 79  

Sample 2 mean 84  

Sample 1 S.D. 7  

Sample 2 S.D. 8  

Pooled S.D = [(n1-1)s1^2+(n2-1)s2^2]/(n1+n2-2)

Pooled variance s = [(6)(49)+(7)(64))] / (13) =  (294+448)/13=742/13=57.076923

Pooled variance s^2 = 57.076923  

Standard error of difference in means = sqrt(1/n1+1/n2) times sqrt(s^2)  

Standard error of difference in means = (0.517549)(7.554927) = 3.910046 (denominator of t)  

Confidence interval = (mean1-mean2) +/- t SE  

t is the critical t with 24 degrees of freedom = 2.056  

(79 - 84) +/- (2.056) (3.910046)  

= (-13.04, 3.04)  

Interval encloses 0  

We are 95% confident that there is no statistically significant difference in the mean treatment  methods for hostility.  

4 0
3 years ago
Other questions:
  • List the factor pairs of 16
    14·2 answers
  • Someone plz help me i don't know the answer
    8·1 answer
  • Whichrule how to find the number of triangles if you know the number of squares?
    8·1 answer
  • The LCD is a + 1 (a + 1)³ (a + 1)6
    9·1 answer
  • Tickets for the basketball game cost $14 each if the sale of the tickets brought in $2,226, how many would tickets were sold?
    7·1 answer
  • A photographer shines a camera light at a particular painting forming an angle of 40° with the camera platform. If the light is
    6·1 answer
  • B) Find the value of 2^-3 x 3^-2
    11·2 answers
  • Que es el teorema del coseno
    6·2 answers
  • 3 fewer than a number squared and four
    8·2 answers
  • Solve each proportion. 9/8 = x/7
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!