NGIVENTotal expenses of running Sanskar Velly School which is a day boarding school are partly fixed and partlystudents varying linearly with the number of students. The average EXPENSE per STUDENT is $ 70 when there are 25 students and $ 60 when there are 50 students.TO DETERMINEThe average expense per student when there are 100 studentsEVALUATIONLet the fixed amount is $ x and varying amount per student be $ yNow it is given that the average expense per student is $ 70 when there are 25 students ∴ x + 25y = 1750 - - - - - - - - - (1)Again the average expense per student is $ 60 when there are 50 students∴ x + 50y = 3000 - - - - - - - - - (2)Equation (2) - Equation (1) gives 25y = 1250∴ y = 50From Equation (1) we get x = 1750 - 25y∴ The average expense per student when there are 100 students FINAL ANSWERThe average expense per student when there are 100 students = $ 55━━━━━━━━━━━━━━━━Learn more from Brainly :-1. Bananas cost $0.75 per pound. If C represents cost and P represents the number of pounds, which of the following equation brainly.in/question/299100952. In Parul's garden, there are 25 rows ofvegetables. She has five more rows of peppers than tomatoes and two fewer rowbrainly.in/question/13390089