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2022-06-16 08:28:55
653 bạn nhé
2022-05-18 20:03:40
Đổi : 30 phút = 0,5 giờ
Tổng vận tốc 2 xe là:
35 : 0,5 = 70 ( km/giờ)
Hiệu vận tốc 2 xe là :
35 : 1,75 = 20 ( km/ giờ )
Vận tốc của ô tô là :
( 70 + 20 ) : 2 = 45 ( km/giờ)
Vận tốc của xe máy là :
70 - 45 = 25 ( km/giờ)
Đáp số : V xe máy : 25 km/giờ
V ô tô : 45 km/giờ
mình k chắc lắm
2022-03-24 21:55:34
2022-03-24 21:55:26
2022-03-23 20:55:03