Hoàng Đại Quang
Giới thiệu về bản thân
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đọc tiếp
( đúng rồi trend của mik hot rồi )
là giề
điêc à
điê.cs à
Ta có:
- Thời gian xuất phát: 9 giờ 15 phút sáng
- Thời gian đến nơi: 1 giờ chiều (13 giờ 00 phút)
- Vận tốc: 40 km/h
Bước 1: Tính thời gian đi
Từ 9:15 đến 13:00:
- Từ 9:15 → 12:15 = 3 giờ
- Từ 12:15 → 13:00 = 45 phút
Vậy tổng thời gian đi là 3 giờ 45 phút
Đổi 45 phút ra giờ:
\(45 p h \overset{ˊ}{u} t = \frac{45}{60} = 0 , 75 g i ờ\)
Tổng thời gian:
\(3 + 0 , 75 = 3 , 75 \&\text{nbsp};\text{gi}ờ\)
Bước 2: Tính quãng đường
Công thức:
\(S = v \times t\) \(S = 40 \times 3 , 75 = 150\)
✅ Kết luận:
Quãng đường AB là 150 km.
đẻ con
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