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- Suppose the coal and steel industries form a closed economy. Every $1 produced by the coal industry requires $0.30 of coal and $0.70 of steel. Every $1 produced by steel requires $0.80 of coal and $0.20 of steel. Find the annual production (output) of coal and steel if the total annual production is $20 million.9. Consider the consitent m-by-n linear systemQuestion is from subject Linear System Theory
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- 18. Is not a consistent system. Must state type of system and give solution set for that type of system. 25. Type of system and solution set 26. Type of system 42. Parralel, perp, or neither?Urban Community College is planning to offer courses in Finite Math, Applied Calculus, and Computer Methods. Each section of Finite Math has 40 students and earns the college $40,000 in revenue. Each section of Applied Calculus has 40 students and earns the college$60,000, while each section of Computer Methods has 10 students and earns the college $20,000. Assuming the college wishes to offer a total of seven sections, to accommodate 220 students, and to bring in $288,000 in revenues, how many sections of each course should it offer?The following table shows the amount spent by four U.S. airlines to fly one available seat 1 mile in the second quarter of 2014.† Set up a system and then solve using technology. Airline UnitedContinental American JetBlue Southwest Cost (¢) 14.9 14.6 11.9 12.4 Suppose that, on a 3,000-mile New York to Los Angeles flight, United Continental, American, and Southwest flew a total of 280 empty seats, costing them a total of $118,710. If United Continental had three times as many empty seats as American, how many empty seats did each of these three airlines carry on its flight? United Continental __________ empty seats American ___________ empty seats Southwest ___________ empty seats
