SOLUTION: A car travels at 40 km/h for the first 30 minutes, then at 55 km/h for the next hour. What total distance (in km) did the car travel?

Question 943647: A car travels at 40 km/h for the first 30 minutes, then at 55 km/h for the next hour. What total distance (in km) did the car travel?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
s = d/t
d = st
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distance of first leg:
a = 40*(30/60)
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distance of second leg:
b = 55*1
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a + b = total distance
a + b = 40*(30/60) + 55*1
40*(30/60) + 55*1
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75 km
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