You are driving home from the school steadily at 95 km/h for 180 km. It then begins to rain and you slow to 65 km/h. You arrive home after driving 4.5 h. How far is your hometown from school? What was your average speed?
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Ответ:
Let's first calculate the distance you traveled at each speed. Since you drove for 1.5 hours at 95 km/h, you covered a distance of:
1.5 hours * 95 km/h = 142.5 km
Then, you drove for 3 hours at 65 km/h, covering a distance of:
3 hours * 65 km/h = 195 km
To find the total distance you traveled, we add these two distances:
142.5 km + 195 km = 337.5 km
Therefore, your hometown is 337.5 km from school.
To calculate your average speed, we divide the total distance you traveled by the total time you spent driving:
337.5 km / 4.5 hours = 75 km/h
Therefore, your average speed was 75 km/h.
Объяснение:
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