Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometers per
hour and the other travels at an average speed of 70 kilometer's
per hour. How long after they leave the station will they be 50
km apart?
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Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.