southerntouch103
13.10.2020 •
Mathematics
Find the value of a and b
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Ответ:
point the point at b -noel
Step-by-step explanation:
Ответ:
Effective speed= 310+390 = 700mph
Distance = 2100 (omit 200m as we want to know the time when they're still 200m apart)
Time = distance/ speed
T= 2100 / 700
T= 3hrs