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31-08-2017
Mathematics

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a group of 19 students want to see the show at the planetarium. Tickets cost $11 for each student who is a member of the planetarium's frequent visitor program and $13 for each student who is not a member. The total cost of the students' tickets is $209. write an equation

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dpokharnaotzjgn dpokharnaotzjgn

31-08-2017

Make a systems of equations:

11x+13y=209
x+y=19

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