Final answer:
To account for the thermometer's inaccuracy, you would boil the syrup to 247° instead of 235°, which is 12° higher than the recipe states to compensate for the 12° discrepancy.
Step-by-step explanation:
The question is regarding the adjustment of temperature readings on a candy thermometer due to its inaccuracy. If boiling water reads 200° on the thermometer instead of the accurate 212° (which is the boiling point at sea level), this indicates that the reading is 12° off.
When boiling syrup to 235°, this discrepancy must be considered. The correct temperature to boil syrup, considering the inaccurate thermometer, would be 235° + 12° = 247°.