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The Hills County, Michigan, superintendent of education is responsible for assigning students to the three high schools in his county. He recognizes the need to bus a certain number of students, for several sectors, A-E, of the county are beyond walking distance to a school. The superintendent partitions the county into five geographic sectors as he attempts to establish a plan that will minimize the total number of student miles traveled by bus. He also recognizes that if a student happens to live in a certain sector and is assigned to the high school in that sector, there is no need to bus him because he can walk to school The three schools are located in sectors B, C and E The accompanying table reflects the number of high-school-age students living in each sector and the distance in miles from each sector to each school Distance to School Sector School in Sector School in Sector School in Sector Number of B E Students 5 8 6 750 B 0 4 12 600 0 7 150 7 2 5 800 12 7 0 500 Total 2.800 Each high school has a capacity of 1,000 students You have been asked to develop a linear programming model so as to minimize the total number of student miles traveled by bus Decision variable XNumber of students living in sector traveling to school located in sector) The number of decision variables for the model = 15 4 m OO a) The objective function, for the LP model Minimize Z- 5 XAB +8 XAC +6 XAE + 0 Xps +4 XBG + 12 XHE. + 4 Xce +0 Xcc +7XCE+ 7 Xpe + 2 Xoc +5 XDE+ 12 XE + 7 Xec + 0 XEE Subject to XAB+XAC+XAE = 750 number of students in sector A XB +XBc + Xe = 600 number of students in sector B Xce +Xcc + Xce - 150 number of students in sector C Xpe + Xoc + Xpe = 800 number of students in sector D Xes +Xec + Xee = 500 number of students in sector E school B capacity XB8 + Xcs + Xpe + Xee $1,000 XC + XBG + Xcc + Xpc + Xec x1,000 school C capacity school E capacity XAE + XBE + Xce + XE: XEE