Question

Chris is riding his bicycle. He rides at a speed of 7 kilometers per hour for 17.5 kilometers. For how many hours does he ride?

Answer 1

From the question, Chris speed was 7 km/hr and he rides a distance of 17.5 kilometers.

Speed is given by the formula

`speed=(distance)/(time)`

So putting in the values we have

`\begin{gathered} 7=(17.5)/(t) \\ 7t=17.5 \\ dividing\text{ both sides by 7, we have } \\ (7t)/(7)-=(17.5)/(7) \\ t=(17.5)/(7) \\ t=2.5\text{ hours } \end{gathered}`

Hence the answer is 2.5 hours