One evening 1400 concert tickets were sold for the Fairmont Summer Jazz Festival. Tickets cost $20 for covered pavilion seats a
nd $15 for lawn seats. Total receipts were $24,000. How many tickets of each type were sold?
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
Determine the inverse function
Start by replacing f(x) with y
Swap the positions of y and x
Make y the subject: <em>Add 4 to both sides</em>
Make y the subject: <em>Divide through by 2</em>
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Replace y with f-1(x)
Answer:
Step-by-step explanation:
In right triangle XZW, the height WY is the geometric mean of segments ZY and XY.
Hence,