Tổng vận tốc 2 xe : 162 : 2 = 81 km/giờ
Vận tốc ô tô đi từ A : 81 : (4 + 5) x 4 = 36 km/giờ
Vận tốc ô tô đi từ B : 81 - 36 = 45 km/giờ
Điểm gặp nhau cách A : 36 x 2 = 72 km
a,Tổng vận tốc hai xe là
\(162\div2=81\)[ km/h ]
Vận tốc của ô tô thứ nhất là
\(81\div(4+5)\times4=36\) [ km/h ]
Vận tốc của ô tô thứ hai là
81 - 36 = 45 [ km/h ]
b.Điểm gặp nhau cách A số kilomet là
\(36\times2=72\)[ km ]
Đáp số ; a,............
b, .......
Chúc bạn học tốt
tổng van tốc hai xe la ; 162 :2 =81 [km/giờ]
van toc cua ôt thu nhat la ; 81 : [ 4+5] x4 =36 [km/gio]
van toc ôt thu 2 la ;81-36=45 [km/gio]
diem gap nhau cach a so km la ;36x2 =72km
đ/s ;a .45 km/h
b, 72km
Giải:
a) Tổng vận tốc của hai ô tô là:
162 : 2 = 81 (km/giờ)
Vận tốc của ô tô đi từ A là:
81 : (4 + 5) x 4 = 36 (km/giờ)
Vận tốc của ô tô đi từ B là:
81 : (4 + 5) x 5 = 45 (km/giờ)
b) Chỗ gặp nhau cách A số ki-lô-mét là:
36 x 2 = 72 (km)
Đáp số: a) 36km/giờ và 45km/giờ
b) 72km.
Đáp án:
Giải thích các bước giải:Tổng vận tốc 2 xe là:
162:2=81(km/giờ)
Vận tốc ô tô đi từ A là:
81:9x4=36(km/giờ)
Vận tốc ô tô đi từ B là:
81-36=45(km/giờ)
Điểm gặp cách A là:
36x2=72(km)
ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnlkkkkkkkkkkkkkkkkkkkkkkkkkiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeettttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttyzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiioooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooopppppppppppppppppppppppppppppppppppppppppppppppppaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasssssssssssssssssssssssssssssssssssssssssssssssssssddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddđfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffggggggggggggggggggggggggggggggggggggggggggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkklllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm,,,,,