SOLUTION: Carlos lives 500 meters away from his friend�s home. He starts to sprint to his friend�s home at a speed of 10 m/s for 10 seconds then slows to 4 m/s for 90 seconds. What is his

Question 959772: Carlos lives 500 meters away from his friend�s home. He starts to sprint to his friend�s home at a speed of 10 m/s for 10 seconds then slows to 4 m/s for 90 seconds. What is his average speed?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
He sprints (10sec)*(10m/s)=100 meters at 10 m/s and
(90sec)*(4m/s)=360 meters at 4 m/s for a total of
460 meters in 100 seconds so his average rate was:
460 m/100 sec=4.6 m/s
ANSWER: His average rate was 4.6 meters per second
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