Able trucking company has a job moving 21 tons of sand. the company has 8 drivers in the company and 2 types of trucks. one type of truck can haul 5 tons of sand and the other type of truck can haul 3 tons. insurance requirements make it necessary for trucks hauling 5 tons of sand to have two drivers in the cab during the operation. three ton trucks require only one driver. using all available drivers, how many trucks of each size will be needed to move the sand in one trip?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account