Question

transforme 170º f em graus celsius, e 30º c em graus fahrenheit?

Answer 1

Usando a seguinte formula:

$\frac{f-32}{9} = \frac{c}{5} \\ \\ \frac{170-32}{9} = \frac{c}{5} \\ \\ \frac{138}{9} = \frac{c}{5} \\ \\ 9c=138*5 \\ \\ 9c=690 \\ \\ c=\frac{690}{9} \\ \\ c=\boxed{\text{76,6 C}}}$

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$\frac{f-32}{9} = \frac{c}{5} \\ \\ \frac{f-32}{9} = \frac{30}{5} \\ \\ 5f-160=270 \\ \\ 5f=270+160 \\ \\ 5f=430 \\ \\ f=\frac{430}{5} \\ \\ f=\boxed{\text{86 F}}$

Answer 2

Tc= 5÷9 (tf-32)
Tc= 5÷9 (170-32)
Tc= 5÷9×138
Tc= 76,66°C



30= 5÷9 (Tf-32)
270÷5 = Tf-32
54+32=Tf
Tf= 86°F