To model the situation described, we need to express the total value of the dimes and quarters Jason has.
- Each dime is worth $0.10, so d dimes have a total value of \( 0.1d \).
- Each quarter is worth $0.25, so q quarters have a total value of \( 0.25q \).
The total value of the coins is then given by \( 0.1d + 0.25q \).
Since it is stated that the total value of the coins is less than $14.75, we can write the inequality as:
\[ 0.1d + 0.25q < 14.75 \]
Therefore, the correct inequality that models this situation is:
0.1d + 0.25q < 14.75.