90T = 70(T+1)
90T = 70T + 70
20T = 70
T = 3.5 h.
Paul travels from Rye to Easton at an average speed of 90km/h. He travels for T hours.
Mary makes the same journey at an average speed of 70km/h. She travels for 1 hour longer than paul.
Work out the value of T.
1 answer
1 answer