a. -8,44 b. -18,44 c. -28,44 d. -48,44 e. -56,44 jawaban yg benar dan jelas sy lgsg jadiin yg terbaik, makasih!

Td °F = 212 °F
Tb °F = 32 °F
Td °C = 140 °C
Tb °C = -20 °C

°F = 0

Maka °C = __ ?

[tex] \frac{212 - 0}{212 - 32} = \frac{140 - \ \mathrm{^oC}}{140 - (-20)} \\
\frac{212}{180} = \frac{140 - \ \mathrm{^oC}}{160} [/tex]
°C = -48,44 [D]

Skala termometer fahrenheit
212 - 32 = 180

Skala termometer X
140 - (-20) = 160

Perbandingan skala
fahrenheit : X
180 : 160
9 : 8

(0-32) × 8/9 + (-20)
-32 × 8/9 + (-20)
-28,44 + (-20)
-48,44 (D)