Question

Mackenzie walked a total of 12 kilometers by making 4 trips to school. How many trips willMackenzie have to make in all to walk a total of 18 kilometers?

Answer 1

12 kilometers are equivalent to 4 trips.

To find how many trips are equivalent to 18 kilometers, we can use the next proportion:

$\frac{12\text{ kilometers}}{18\text{ kilometers}}=\frac{4\text{ trips}}{x\text{ trips}}$

Solving for x:

$\begin{gathered} 12\cdot x=4\cdot18 \\ x=\frac{72}{12} \\ x=6 \end{gathered}$

Mackenzie have to make 6 trips to walk 18 kilometers.