Question

convert 104℉ into centigrade.

Answer 1

(F = fahrenheit,C = celcius)

F = $\dfrac{9}{5}C + 32$

104 = $\dfrac{9C}{5}+{160}{5}$

104×5=9C+160

520-160 = 9C

360 = 9C

C = 40°

Answer 2

℃/5 = 104-32/9

= 9℃ = 72×5

9℃ = 360

C= 360/9 = 40℃