Mathematics, 21.09.2020 15:01 fromthebranch13
Long-sleeve T-shirts cost $12.99; short-sleeve T-shirts cost $9.98. During one day, 90
shirts were sold for a total of $1,012.58. Let 3 represent the number of long-sleeve T-
shirts and y represent the number of short-sleeve T-shirts.
Identify the equations that represent the given information accurately. Select all that
apply
+y=1,012.58
12.99a +9.98y = 1,012.58
x+y=90
12.99x + 9.98y90
12.99x9.987
Question 2
1 pts
Answers: 3
Mathematics, 21.06.2019 14:00, 30valgolden
Complete the truth table a. t, f, f, t b. t f f f c. f t f t d f t f t
Answers: 1
Mathematics, 22.06.2019 01:10, Weser17
Jobs and productivity! how do retail stores rate? one way to answer this question is to examine annual profits per employee. the following data give annual profits per employee (in units of 1 thousand dollars per employee) for companies in retail sales. assume σ ≈ 4.0 thousand dollars. 3.7 6.7 3.6 8.5 7.5 5.9 8.7 6.4 2.6 2.9 8.1 −1.9 11.9 8.2 6.4 4.7 5.5 4.8 3.0 4.3 −6.0 1.5 2.9 4.8 −1.7 9.4 5.5 5.8 4.7 6.2 15.0 4.1 3.7 5.1 4.2 (a) use a calculator or appropriate computer software to find x for the preceding data. (round your answer to two decimal places.) thousand dollars per employee (b) let us say that the preceding data are representative of the entire sector of retail sales companies. find an 80% confidence interval for μ, the average annual profit per employee for retail sales. (round your answers to two decimal places.) lower limit -- thousand dollars upper limit -- thousand dollars (c) let us say that you are the manager of a retail store with a large number of employees. suppose the annual profits are less than 3 thousand dollars per employee. do you think this might be low compared with other retail stores? explain by referring to the confidence interval you computed in part (b). yes. this confidence interval suggests that the profits per employee are less than those of other retail stores. no. this confidence interval suggests that the profits per employee do not differ from those of other retail stores. correct: your answer is correct. (d) suppose the annual profits are more than 6.5 thousand dollars per employee. as store manager, would you feel somewhat better? explain by referring to the confidence interval you computed in part (b). yes. this confidence interval suggests that the profits per employee are greater than those of other retail stores. no. this confidence interval suggests that the profits per employee do not differ from those of other retail stores. (e) find an 95% confidence interval for μ, the average annual profit per employee for retail sales. (round your answers to two decimal places.) lower limit 3.75 incorrect: your answer is incorrect. thousand dollars upper limit 6.41 incorrect: your answer is incorrect. thousand dollars
Answers: 3
Mathematics, 22.06.2019 03:30, vlactawhalm29
At the movie theatre, child admission is $5.20 and adult admission is $9.70. on sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. how many child tickets were sold that day?
Answers: 1
Mathematics, 22.06.2019 04:30, willcoop6470
You borrow $15000 to buy a tractor. the simple interest rate is 4%. you pay the loan off after 8 years. what is the total amount you paid for the loan
Answers: 2
Long-sleeve T-shirts cost $12.99; short-sleeve T-shirts cost $9.98. During one day, 90
shirts were...
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