Question

A thermometer shows 70, 80, 90, and 100 degrees Fahrenheit on the left, with heavy unlabeled tick marks halfway between each labeled pair, and smaller tick marks between indicating degrees. On the right, 20 and 30 degrees Celsius are marked, with heavy tick marks halfway between the two labeled marks and above the 30 degree mark, and smaller tick marks indicating degrees between all the heavy marks. A red line extends to 37 degrees Celsius, which is about 88.5 degrees Fahrenheit.

Answer 1

Looks like the thermometer reading was mis-converted.

How to read the scales:
- Fahrenheit side: labeled at 70, 80, 90, 100 °F. The heavy tick halfway between each labeled pair is 5° intervals (75, 85, 95 °F); the small ticks are 1° intervals.
- Celsius side: labeled at 20 and 30 °C, the heavy tick halfway is 25 °C and the heavy tick above 30 is 35 °C; the small ticks are 1° intervals.

Conversion:
- Formula: F = C × 9/5 + 32.
- For 37 °C: F = 37 × 9/5 + 32 = 66.6 + 32 = 98.6 °F (about 98.6 °F).

If you instead convert 88.5 °F to Celsius: C = (F − 32) × 5/9 = (88.5 − 32) × 5/9 ≈ 31.4 °C.

So 37 °C corresponds to about 98.6 °F, not about 88.5 °F. If you want, I can mark exactly where 37 °C should fall on the Fahrenheit side of your picture.