Here's the question I'm having trouble with. Ken and Kara are 30 miles apart on a calm lake paddling towards each other. Ken paddles at 4 mph, while Kara paddles at 7 mph. HOw long will it take them to meet?
[Math] How to calculate the time two people will meet if they are paddling towards each other on a lake
algebra-precalculusphysics
Best Answer
I suppose that you know how to find variable $t$ (time) from system below :
$$\begin{cases} x + y = 30 \\ x=4\cdot t \\ y=7 \cdot t \end{cases}$$