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boo6931
19.01.2020 •
Mathematics
Is the first 5 10 times as great as the value of the second 5 in the number 37,253,956
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Ответ:
Ответ:
Average speed = 3.9 m /s
Step-by-step explanation:
Total distance = 400m
First 150m = 5.4m/s
Second part :
S = 4.5m/s for 40s
Third part :
Remaining distance = 400 - 150 -180 = 70m
Time taken to cover it = 34s
Speed = 2.05m/s
Find average speed
Round to 1 dp => average speed = 3.9m /s