Gọi: số lớn là: a; số bé là: b (a>b; a,b∈Z)
Theo baif, ta cos hpt:
$\frac{a-6}{b}=4$
$⇔4b=a-6$
$⇔4b-a=-6$
$⇔-(a+b)+5b=-6$
$⇔-186+5b=-6$
$⇔5b=180$
$⇔b=36$
$⇔a=186-36=150$
Vậy số lớn: $150$; số bé: $36$
Đáp án:
Giải thích các bước giải:
Gọi số lớn là `x`
Số bé là `y`
Ta có:
`x+y` `=` `186`
`x:y` `=` `4` dư `6`
`<=>` `x-6` `:y` `=4`
`<=>` `x-4` `=4y`
`<=>` `x-4+y` `=` `186-6=180`
`<=>` `5y` `=` `180`
`<=>` `y` `=` `36`
`<=>` `x=186-36` `=` `150`
Vậy số lớn là `150` số bé là `36`
CHÚC BẠN HỌC TỐT
Một thửa ruộng hình thang vuông có đáy bé 31,5m; đáy lớn 40,5m và chiều cao 30m. Người ta mở rộng thửa ruộng đó để trở thành hình chữ nhật thì diện tích thửa ruộng được tăng thêm bao nhiêu phần trăm? Các bạn chỉ cần ghi đáp án thôi!
Giải giúp e vs ạ tối nay e phải nộp r Em vote 5 sao cho ạ
ai biết giải 2 câu này ko ạ em cần câu trả lời gấp 🙏🙏😭😭
B. Read the text carefully and then answer the questions. NO MORE THAN 5 WORDS. (2ms) Nowadays, television becomes very popular. Both old and young people enjoy watching it very much. TV programs attract millions of viewers all around the world. In addition to the news, television stations also broadcast many interesting programs such as sports, music, cartoons, wild life, popular science, reports, contests, movies, ect. At present, people can enjoy a live program on TV. Live TV program helps us see events at the same time as they are happening. In our country, we often watch live TV programs of important events and international football matches. 1. Who enjoy watching television? __________________________________________________________________________ 2. What program helps us see events at the same time as they are happening? __________________________________________________________________________ 3. How many viewers do TV programs attract all around the world? __________________________________________________________________________ 4. Do Vietnamese people often watch live TV programs of important events and international football matches? __________________________________________________________________________ IV. Writing. (2.5ms) A. Do as directed. (1.5ms) 1. He’s an impatient person. (not at all) (rewrite the sentence to include the modifying adverb in brackets) ___________________________________________________________. 2. He often goes swimming at the sport centre. (make question) Where ______________________________________________________? 3. Lucy/ prefer/ watch/ football/ TV/ play/ it. (Compete the sentence) ___________________________________________________________. 4. I sometimes pretend ___________________________________________. (Complete the sentence with true information about yourself) 5. games/ do /play/ on/ computer/ own/ you/ or/with / your/ friends? (reorder this sentence) ______________________________________________________? 6. Don’t be late because she won’t wait for you. She’s really ____________ . (patient) (Supply the correct form of the word in bracket)
Các bạn có thể giải bài này giúp mình đc ko ạ
Ai có thể giúp em làm câu 3 với ạ
Lập phương trình đường thẳng đen ta trong trường hợp đen ta qua M(1;-3/4) vuông góc với đường thẳng đen ta phẩy x-3y + 12=0
B. Choose the word whose main stress is placed differently from that of the others 3. A. terrible B. ambition C. confident D. tolerant 4. A. unfair B. pretend C. trendy D. polite II. Choose the best answer: (2ms) 1. I really don’t like surfing the Internet. A. would rather B. prefer C. can’t stand D. would like 2. I’m _________________. I always want to know everything quickly. A. funny B. impatient C. grateful D. serious 3. I always spend an hour _____________ to English songs every day. A. listen B. listening C. to listen D. listened 4. She couldn’t sleep well because that bed was _____________. A. uncomfortable B. rude C. disloyal D. comfortable 5. John is addicted ___________ playing computer games A. to B. at C. for D. on 6. ___________ teenagers in the UK today play team sports? - Less than half of them. A. How often B. How much C. How many D. How long 7. Why don’t we play volleyball? A. Really? B. So do I. C. Me too. D. Sure, good idea. 8. Opposite of “mean” is …………… A. optimistic B. serious C. generous D. rude III. Reading: (3ms) A. Read the passage and choose the correct answer. (1m) THE LANGUAGE OF CLOTHES We don’t only choose clothes to make us look attractive. We also use them to tell the world (1) …………… our personality. The clothes we wear and our appearance as a whole give other people useful information about what we think and (2) …………….. we feel. If we feel cheerful, we usually wear (3) ………….. clothes and if we feel depressed we sometimes put on dark clothes. But why do teenagers wear black so frequently?. Is it because they feel miserable all the time ?. This is unlikely to be the case. It is probably just because it is (4) ……………… to wear black, and young people are real fans (5) ………………. fashion. 1. A. of B. with C. by D. about 2. A. which B. what C. how D. when 3. A. colorful B. colors C. colorfully D. colorless 4. A. fashion B. fashionable C. fashioner D. fashioned 5. A. of B. in C. from D. with
Tổng của tuổi anh và tuổi em là 23, Cách đây 4 năm tuổi của anh gấp đôi tuổi em . Tính tuổi của anh và em
tìm x : 53,2 : (x-3,5 ) +45,8 =99
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến
