Question

Se um carro demora 16 minutos para chegar na cidade que fica a 12km, qual a velocidade media do carro?​

Answer 1

Explicação:

t=0,3h

x=12km

v=?

v=x/t

v=12/0,3

v=40km/h

Answer 2

$\Large\displaystyle\begin{gathered} \bf{F\acute ormula: } \end{gathered}$

$\Large\displaystyle\text{ \begin{gathered} \boxed{\boxed{\sf{ V_m=\frac{\Delta S}{\Delta t}}}} \end{gathered} }$

$\Large\displaystyle\begin{gathered} \bf{ Dados:} \end{gathered}$

$\Large\displaystyle\text{ \begin{gathered} \sf{ \begin{cases}\sf V_m=?\,km/h\\\sf\sf\Delta S=12\,km\\\sf\Delta t=16\,min=\dfrac{4}{15}\,h\end{cases}} \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \bf{ Soluc_{\!\!,}\tilde ao:} \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \sf{V_m=\frac{12\,km}{\dfrac{4}{15}\,h }} \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \therefore\underline{\boxed{\boxed{\sf{V_m=45\,km/h }}}} ~~(\checkmark)\end{gathered} }$