What is the difference? x2 - 2x-15 x2+2x-35
1 answer:
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<u>Answer:</u>
355 senior citizen tickets were sold.
<u>Step-by-step explanation:</u>
Assuming a to the the ticket of adults and s to be the ticket of senior citizens, we can write two equations as:
--- (1)
--- (2)
From equation 1, .
Substitute in equation 2 to get:
Therefore, there were 355 senior citizen tickets sold.