Question

Teddy is staying in Canada. He wants to set the thermostat to around 79°F, but the thermostat is marked only in °C. Where should he set the thermostat, to the nearest tenth? (C = 5/9 (F - 32))
a.
11.9°C
b.
26.1°C
c.
33.6°C
d.
84.6°C

Answer 1

Use C = (5/9)(F − 32). For F = 79: C = (5/9)(79 − 32) = (5/9)(47) = 235/9 ≈ 26.1°C.

Answer: b. 26.1°C