Question

38 - Quanto equivale 80graus Celsius em Fahrenheit *
O 100
O 176
O 136
O 166​

Answer 1

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

$\dfrac{80}{5} =\dfrac{F-32}{9}$

$16 =\dfrac{F-32}{9}$

$16\cdot9 = F-32$

$16\cdot9+16\cdot2 = F$

$F = 16\cdot11$

$F = 176$