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Galina-37 [17]
3 years ago
10

Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total

of 11 people took the trip. She was able to purchase coach tickets for $210 and first class tickets for $1200. She used her total budget for airfare for the trip, which was $10,230. How many first class tickets did she buy? How many coach tickets did she buy?
Mathematics
1 answer:
dimulka [17.4K]3 years ago
6 0
You can set up a system of equations for this problem. x= number of coach tickets and y = number of first class tickets.

$210x + $1200y = $10,230 (cost of coach ticket plus cost of first class tickets is total budget)

x + y = 11 (number of coach tickets plus number of first class tickets is total number of people)

Solve the second equation for y to get y = 11 - x, then plug that into the first equation and solve for x:

$210x + $1200(11 - x) = $10,230

$210x + $13,200 - $1200x = $10,230

-$990x + $13,200 = $10,230

-$990x = $2,970

x = 3


Sarah bought x = 3 coach tickets. Plug that into the second equation and solve for y:

3 + y = 11

y = 8


Sarah bought y = 8 first class tickets.
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