Ed is on a road trip. he has already traveled 242 miles and is driving at a rate of 63 miles per hour. which equation could be used to find how many hours, x, ed has left in his road trip if he is traveling 668 total miles?
a.
242x + 668 = 63

b.
242x + 63 = 668

c.
63x + 242 = 668

d.
63x + 668 = 242

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

What term makes it inconsistent y=2x - 4 ?

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.