malia has $500 to purchase water bottles and pairs of socks for a fundraiser for her schools cross-country team. she needs to buy a total of a least 200 items without buying too many of just one of them. the graph shows the possible number of water bottles and pairs of socks that malia should buy, and the system of inequalities. x+y greater than or equal to 200 2x+3y less than or equal to 500 the given system of inequalities only makes sense in the first quadrant. what two inequalities could be added to indicate this? explain.

What’s the answer ? use the picture to see the problem

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.

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?