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Arada [10]
4 years ago
6

Plz help its due tonight thanks a lot

Mathematics
1 answer:
kicyunya [14]4 years ago
7 0

x + y = 14 \\ 340x + 1030y = 8210
x = 14 - y
Substitute into
340(14 - y) + 1030y  = 8210 \\ 4760 - 340y + 1030y = 8210 \\  690y = 3450 \\ y = 5
Insert y = 5 into
x = 14 - 5 \\ x = 9
Answer: 9 coach tickets, 5 first class tickets.

Hope this helps.
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