SOLUTION: Luigi rides his bike to school, and forgets his lunch. 10 min after he leaves the house, his mother starts to drive after him in her car. The speed of her car is 22mph. Luigi rides

Algebra ->  Equations -> SOLUTION: Luigi rides his bike to school, and forgets his lunch. 10 min after he leaves the house, his mother starts to drive after him in her car. The speed of her car is 22mph. Luigi rides      Log On


   

Question 104188: Luigi rides his bike to school, and forgets his lunch. 10 min after he leaves the house, his mother starts to drive after him in her car. The speed of her car is 22mph. Luigi rides his bike at 12 mph. How long until the mother catches up?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let t=(time till mother catches up) ... d=rt; she catches up when the distance is the same

speed is in mph so time is in hours ... 22(t)=12(t+(1/6))