Theo bài ra: `b - a = 2`
`=> b = a + 2`
`a/b = 5/6`
`=> a . 6 = b . 5`
`=> a .6 = (a + 2) . 5`
`=> 6a = 5a + 10`
`=> 6a - 5a = 10`
`=> a = 10`
`=> b = a + 2 = 10 + 2 = 12`
Vậy `a = 10 ; b = 12`
Đáp án:
Giải thích các bước giải:
Ta có: a = 2 : (6-5) x 5 = 10
→b= 2+10 = 12
Giúppppp mình vs ạ Cảm ơnnnn mn đã giúp đỡ
Giúp mk vs đc không ạ🙏🙏🙏🙏🙏
Giúp đỡ em giải bài toán khó này
Vẽ mầm thắc mắc NL: Mà sao mấy thành viên BĐHH sao bị mất chức hết rồi, meocute, anhchangtoanhoc.................... Vì sao?
1 bể nước dạng hhcn có thể tích là 1,8m3.đáy bể có cd 1,5m,cr 0,8m.cc của bể nước đó là:
cho thanh gỗ dài 2dm2cm. bác thợ mộc đã dùng 4 lần cưa thành các đoạn gỗ dài bằng nhau. hỏi bác cưa được mấy đoạn. mỗi đoạn dài bao nhiêu cm ?
help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 2 cách ạ
Cho p,p+4,p+2 là số nguyên tố.tìm p?
giúp mình với 456 x 16 x 17 + 13
I. Put verbs in correct form: 1. When he (come) _______________ home, he (meet) _________________ us. 2. (you/ phone) ___________________________ her? 3. Why (not / we) ____________________________________ go out? 4. The man (call) _______________________ Mary two days ago. 5. They (make) ___________________________ cakes since we (go)_________________ to school. 6. At 6p.m yesterday, I (prepare) _______________________________ dinner. 7. The weather (be) ___________________ terrible last week, but I think I (be) _______________ better tomorrow. 8. She (be) __________________ a nurse in the future. 9. They (be) ____________________ good doctors one day. 10. I think it (be) ________________ better. 11. He (go) ______________________ there twice. 12. Last night, she (come) ______________________ here. 13. Why (you / not / go) _____________________________ to school last Saturday? 14. Every morning, we (walk) _______________________ together. 15. Look! the babies (climb) _________________________ out of the bed. 16. Maybe, she (call) __________________ and (tell) _________________ you the truth. 17. They (just / finish) ________________________ the project. 18. How long (she / live) ________________________________ here? 19. Which language (she/ teach )_____________________________________ now? 20. It’s five year since she last (speak) __________________________to me. II. Put the verbs in brackets into the future continuous. 1. This time tomorrow, I (attend) _____________________ the conference on energy management. 2. They (install) _______________________ the solar panels when you arrive tomorrow. 3. (you /give)____________________________ a talk about saving energy at 9 a.m. next Saturday? 4. At midnight next New Year's Eve, I (not watch)_________________________ the firework with Tom. 5. At 7 a.m. tomorrow, I (cycle) _______________________ to school. 6. (you / go) _________________________ to school on your skateboard this time tomorrow? 7. We (use)__________________________ biogas for cooking when he comes next week. 8. She (not take) __________________________ a shower this time tomorrow evening.
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến