Let the price of a silver ticket be \( x \). Then, the price of a gold ticket is \( x + 8 \).
Patrick bought 10 tickets of each type, so the total cost for the silver tickets is:
\[ 10x \]
The total cost for the gold tickets is:
\[ 10(x + 8) \]
According to the problem, the total amount spent by Patrick is $140. Therefore, we can set up the equation:
\[ 10x + 10(x + 8) = 140 \]
Now, simplify the equation:
\[ 10x + 10x + 80 = 140 \] \[ 20x + 80 = 140 \]
Subtract 80 from both sides:
\[ 20x = 60 \]
Now, divide by 20:
\[ x = 3 \]
So, the price of a silver ticket is \( x = 3 \) dollars.
Now, we can find the price of a gold ticket:
\[ x + 8 = 3 + 8 = 11 \]
Therefore, the prices of the tickets are:
- Silver ticket: $3
- Gold ticket: $11
Final answer: $3 for each silver ticket and $11 for each gold ticket.