Mathematics, 25.08.2019 00:10 emilyplays474
Sierra has a total of 61 dimes and quarters. she has 3 more quarters than dimes. the coins have a value of $10.90. how many quarters and dimes does she have? [hint: use the decimal values of the c coins to write an equation.] (the instructions say "write an equation and use the equation to solve the problem.")
Answers: 1
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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.
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Sierra has a total of 61 dimes and quarters. she has 3 more quarters than dimes. the coins have a va...
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