I don't think there is a way to answer your question.
Let x equal the number of adult tickets sold.
X + 3X=512
(I put 3x because we know the students sold 3 times as many).
Solve for X.
X+3X=512
4X=512
4X/4=512/4
X=128
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The given triangles are similar by ~
Answer:
a
Step-by-step explanation: