Question

Can you please help me with this 2 step problem

Answer 1

Answer :8.18 minutes

Explanation

GIVEN

• Adrian takes 15 minutes to run around the track = 1 /15

,

• Jeremy takes 18 minutes to run around the track = 1/18

CALCULATE WHEN THEY BOTH RUN TOGETHER :

`\begin{gathered} \frac{1}{15\text{ }}+\frac{1}{18\text{ }}=\text{ 11/90} \\ \text{ reciprocal = }(90)/(11)=8.18\text{ minutes } \end{gathered}`

This means that it will take them 90/11 minutes = 8.18 minutes for both boys to return at the starting point at the same time