SOLUTION: A car travels d1 kilometers at s1 kilometers per hour. Then, it travels d2 kilometers at s2 kilometers per hour. Finally, it travels d3 kilometers at s3 kilometers per hour. Write

Question 873773: A car travels d1 kilometers at s1 kilometers per hour. Then, it travels d2 kilometers at s2 kilometers per hour. Finally, it travels d3 kilometers at s3 kilometers per hour. Write a formula for the average rate of speed, s, over the entire trip.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A car travels d1 kilometers at s1 kilometers per hour.
Then, it travels d2 kilometers at s2 kilometers per hour.
Finally, it travels d3 kilometers at s3 kilometers per hour.
Write a formula for the average rate of speed, s, over the entire trip.
:
Write a time equation
+ + =
:
s( + + ) = d1+d2+d3
:
s =
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