To determine how many educational workshops Justin can afford, we first need to account for the entrance ticket and then see how much money is left for the workshops.
- Cost of entrance ticket: $35
- Justin's total budget: $100
After paying for the entrance ticket:
\[ \text{Remaining budget} = \text{Total budget} - \text{Entrance ticket} = 100 - 35 = 65 \]
- Cost of each educational workshop: $19
Now, we divide the remaining budget by the cost of each educational workshop to find out how many workshops he can afford:
\[ \text{Number of workshops} = \frac{\text{Remaining budget}}{\text{Cost of each workshop}} = \frac{65}{19} \approx 3.42 \]
Since Justin can only attend a whole number of workshops, we round down to the nearest whole number. Therefore, Justin can afford to attend 3 educational workshops.
So, the answer is:
3 educational workshops.