Question

Solve this inequality.Two people running pass each other. They continue in opposite directions. The first person is running at 6 mph. The other one is running at 10 mph. How many minutes will pass before they are at least 2 miles apart?

Answer 1

Explanation:

`6t+10t \geq 2\\16 t\geq 2\\t\geq (2)/(16) \\or ~t\geq (1)/(8) ~hrs\\or~t\geq (60)/(8) \\or~t\geq 7.5~minutes.`