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Aloiza [94]
3 years ago
5

A total of 315

Mathematics
1 answer:
Genrish500 [490]3 years ago
4 0
Let x be the number of tickets sold to adults and y the number sold to students:

x + y = 315. But we know that y was double x, then :
y = 2x

Plug the value of y (in the 1st equation) by 2x:
 x+ 2x = 315
3x = 315
and x = 105 (which is the number of tickets sold to adults
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