Question

a scientist build a Mars rover that can travel 4.9 cm per second on flat ground if the Rover continues at the same rate how many centimeters will it travel in $15 \times \frac{1}{2}$

Answer 1

THe Mars rover can travle 4.9 cm in one second, so to finde the distance he made in 15/2 second we can made a tule of 3 so:

$\begin{gathered} 4.9\to1 \\ x\to\frac{15}{2} \end{gathered}$

and the expression will be:

$x=\frac{4.9\cdot\frac{15}{2}}{1}$

and we solve for x

$\begin{gathered} x=4.9\cdot7.5 \\ x=36.75 \end{gathered}$

So the solution will be that the Mars rover can travle 36.75 cm in 15/2 seconds