At a school play, children’s tickets cost $3 each and adult tickets cost $7 each. The total amount of money earned from ticket s
ales equals $210. Which is the number of children's tickets sold for the school play?
2 answers:
Your question is incompatible to find any exact answer
210 = 7a + 3c
210 - 7a = 3c
(210 - 7a)/3= c
now graph it as
y = (210-7x)/3
It's 70. Cause 3 × 70 is 210.
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