Mathematics, 14.01.2021 16:30 Caleb0018
A restaurant sells basic lunches for $6 and supreme lunches for $8. You buy 12 lunches, represented by the equation x + y = 12, where x is the
number of basic lunches and y is the number of supreme lunches. The equation 6x + 8y = 76 represents the total cost. How many of each type of
lunch did you buy?
Answers: 2
Mathematics, 21.06.2019 15:10
Which system of linear inequalities is graphed? can somebody pleasssse
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Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
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