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Allushta [10]
3 years ago
7

Cost of tickets is 90. 7 adult tickets and 12 kids tickets. Kids tickets 2/3 the adult ticket. How much are adult tickets

Mathematics
1 answer:
STatiana [176]3 years ago
4 0
7x+12y=90
y = 2/3x

15x=90
x = 6
 6 dollars
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