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anonymous
 5 years ago
solve using two equations with two variables
Sarah took the advertising department from her company on a round trip to Chicago to meet with a potential client. Including Sarah, a total of 14 people took the trip. She was able to purchase coach tickets for $250 and firstclass tickets for $1150. She used her total budget for airfare for the trip, which was $10,700. How many firstclass tickets did she buy?
How many coach tickets did she buy?
anonymous
 5 years ago
solve using two equations with two variables Sarah took the advertising department from her company on a round trip to Chicago to meet with a potential client. Including Sarah, a total of 14 people took the trip. She was able to purchase coach tickets for $250 and firstclass tickets for $1150. She used her total budget for airfare for the trip, which was $10,700. How many firstclass tickets did she buy? How many coach tickets did she buy?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I need help in setting up my equations.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I haven't done word problems like this, but this would be how I envision the setup: You have x amount of people flying coach, and y amount of people flying firstclass, with the total cost being $10,700. 250x+1150y=10700. Now, because x and y have to add up to be 14, x+y=14. Now you can either use substitution; matrix manipulation; elimination, what have you, to solve this.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I set it up like that and I am stuck solving the equation. I am coming up with a bunch of fractions.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay, try using substitution. In the second equation, set x = 14y. Plug (14y) into your first equation, in place of x, and you'll get a clean value for y. Then, you know how many firstclass; which leads you to how many coach tickets.
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