a
Convert the temperature 16°F to Celsius:
16 = 1.8С + 32
16 - 32 = 1.8C
-16 = 1.8C
С = -16/1.8 ≈ -9
Answer: 16°F ≈ -9°C
b
Convert the temperature -11°C to °F:
F = 1.8(-11) + 32
F = -19.8 + 32
F = 12.2
Find the difference:
difference = 12.2 - (-80) = 12.2 + 80 = 92.2°F
