Tìm hai số chẵn có tổng là 58 và giữa chúng có 3 số lẻ. mình không biết bài này và cũng đang cần gấp. Các bạn giúp mình nhé. Mình cảm ơn các bạn!
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1 They arrived ....in.... London at 7:30 pm
2 I must apologise ....to.....Mary ....for......the delay
3 Sally was ashamed ..of....... Mark's behaviour at the party
4 He doesn's believe ...in...... ghosts
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He visited his grandparents yesterday.
They went to the countryside last week.
He visited his grandparents yesterday.
They went to the countryside last week.
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If they had departed earlier, they wouldn't find themselves caught in traffic.
They wouldn't have gotten stuck in traffic if they had left early,
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XII. Choose the sentence which is closet in meaning to the sentence above
1. i like bird- watching so much
A. I am fond of watching birds so much.
B. I love watching bird so much.
C. I enjoy feeding birds up so much.
D. I am fond of watching bird so much.
2.I don’t think it is difficult to climb mountains with other people.
A. I think it is very easy to climb mountains alone.
B. I don't like climbing mountains with other people because it is difficult.
C. I think it is very difficult to climb mountains with other people.
D. I think it is quite easy to climb mountains with other people.
3.My father and I share the same hobby.
A. I don’t like my father’s hobby.
B. My father doesn’t like my hobby.
C. My father shares this hobby with me.
D. My father shares this hobby of me.
4.Vinh has played the guitar for three years.
A. Vinh didn't play the guitar three years ago.
B. Vinh began to play the guitar three years ago.
C. Vinh has played the guitar three years ago.
D. Vinh loves playing the guitar.
5.He is interested in reading picture books.
A. He finds reading picture books interesting.
B. He doesn't like reading picture books.
C. He will read picture books.
D. He is interesting in picture book
Hôm nay olm.vn sẽ hướng dẫn em giải dạng toán nâng cao, toán tổng hiệu ẩn hiệu, cấu trúc thi hsg, thi chuyên, violympic.
Bước 1: tìm hiệu
Bước 2: giải toán tổng hiệu bình thường
Bước 3 : kết luận
Giải
Ta có sơ đồ:![loading...](https://cdn4.olm.vn/upload/img_student/0817/img_student_2023-08-17_64ddca8b5bbed.jpg)
Theo sơ đồ ta có hiệu hai số là: 2 \(\times\)(3-1) + 2 = 6
Số chẵn bé là: (58 -6): 2 = 26
Số chẵn lớn là: 26 + 6 = 32
Đs..
Thử lại ta có: Tổng hai số 26 + 32 = 58 (ok)
Giữa chúng có: 27; 29; 31 ( 3 số lẻ ok)
Vậy kết quả đúng.
cô thương hoài giải dễ hiểu ghê