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Nguyễn Giang Anh
Giới thiệu về bản thân
có ai giỏi toán hình thì ib lm quen dc kh ạa=))
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2022-05-01 20:53:58
Thời gian ô tô đi là:
11 giờ 15 phút - 7 giờ 45 phút = 3 giờ 30 phút = 3,5 giờ
Độ dài quãng đường đó là:
45 x 3,5 = 157,5 ( km )
2022-04-30 17:59:46
Bài 3 :
Nửa chu vi thửa ruộng là:
200 : 2 = 100 ( m )
Chiều rộng thửa ruộng là:
100 : ( 3 + 2 ) x 2 = 40 ( m )
Chiều dài thửa ruộng là:
100 - 40 = 60 ( m )
Diện tích thửa ruộng là:
60 x 40 = 2400 ( m2 )
Trên thửa ruộng đó thu hoạch được số tạ bắp cải là:
2400 x 5 = 12 000 ( kg )
Đổi 12 000 kg = 120 tạ
Đáp số : 120 tạ bắp cải