Mathematics, 23.01.2020 23:31 shay8181
Ateacher buys 50 train tickets for a school trip for a total cost of $1,200. she buys x number of student tickets for $20 each. she also buys y number of adult tickets for $30 each. how many adult tickets did she buy?
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Ateacher buys 50 train tickets for a school trip for a total cost of $1,200. she buys x number of st...
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