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triddi666
01.07.2019 •
Mathematics
What is the difference between solute and solvent
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Ответ:
Ответ:
Ответ:
1. Attached
2. 25 mph
Step-by-step explanation:
1. Tim travels first 15 minutes
hour at average speed of 40 mph and passed
2. Time stops for 25 minutes (distance traveled = 0 miles).
3. He then completes the journey at an average speed of 45 mph. The total journey time is 1 hour, then he was travelling at 45 mph for
and covered
The distance-time graph for his journey is attached.
Find the average speed for the whole journey: