Since this is in the Mathematics subject my best answer would be Rational.
-7 is the answer to this question
Answer:
<em>Sali's speed was 18.75 km/h.</em>
Step-by-step explanation:
Jane took 3.5 hours to cycle the 63 km.
As, , so the speed of Jane will be:
Suppose, the speed of Sali is km/h
Sali caught up with Jane when they had both cycled 30 km.
So, <u>the time required for Jane to cycle 30 km</u> and <u>the time required for Sali to cycle 30 km</u>
Given that, Sali started to cycle 4 minutes or after Jane started to cycle. So, the equation will be.......
Thus, the speed of Sali was 18.75 km/h.
Start with d=rt. Now, solve for r by isolating it. since r is multiplied by t, divide both sides by t. d/t=r. So your answer would be the 2nd choice.