Đáp án:
Giải thích các bước giải:
rút gọn 300/780 = 5/13
lấy hiệu là 184 chia cho hiệu của tử và mẫu của phân số đã rút gọn là 8
184 / 8 = 23
rồi lấy 23 nhân cho 5 và 13
23 x 5 = 115
23 x 13 = 299
299 - 115 = 184
vậy phân số bằng với phân số 300/780 là 115/299
Tỉ số giữa TS và MS là : 300/780= 300 : 780 =5/13
Coi TS là 5 phần còn MS là 13 phần như thế .
TS của phân số đó là : 184 : ( 13-5 )*5=115
MS của phân số dố là : 115 + 184 =299
Vậy PS đó là : 115/299
cho tam giác ABC cân tại A. Trên cạnh AB,AC lấy M,N sao cho AM=AN. Gọi H là giao điểm của BN và CM. a)BN=CM b)tam giác BHC cân c)MN//BC d)A,H,I thẳng hàng
Exercise 1: Choose the correct answer: 1. At the weekend, we play a __________ of badminton or join in a football match. A. sport B. game C. match 2. Football is an __________ game. A. outdoor B. indoor C. individual 3. Kien is not very __________. He never plays games. A. sport B. sporting C. sporty 4. Thanh likes __________ weather because he can go swimming. A. hot B. cold C. rainy 5. Vietnamese students play different sports and games __________ the break time. A. in B. on C. during 6. Because it doesn’t snow in Viet Nam, we cannot __________ skiing. A. play B. go C. do 7. Many girls and women __________ aerobics to keep fit. A. play B. go C. do 8. It’s very __________ to swim there. The water is heavily polluted. A. safe B. unsafe C. unpopular 9. - __________ do you go to the gym? - By bus. A. What B. How C. Why 10. What’s your favourite __________? - I like swimming. A. subject B. game C. sport Exercise 2: Complete the sentences with the correct tense of the verbs play, do or go. 1. Sarah ______________ gymnastics on Saturday evenings. 2. Mark ______________ badminton with his friends at the moment. 3. My friends and I ______________ climbing yesterday. 4. _________ you __________ table tennis last Sunday? 5. Jim ______________ basketball because he wasn’t tall enough. 6. We ______________ sports together when we were kids. 7. People often ______________ jogging in the park. 8. I ______________ judo now and I love it Exercise 3: Choose the word that has a different sound in the underlined part: 1. A. air B. hair C. hear D. chair 2. A. share B. beer C. cheer D. career 3. A. dear B. stairs C. near D. idea 4. A. there B. aerobics C. square D. theatre 5. A. hear B. here C. cheer D. care PHIẾU HƯỚNG DẪN TỰ HỌC TRƯỜNG THCS PASCAL 9 Full name: ................................................ WORKSHEET 2 Class: 6B UNIT 8 – SPORTS AND GAMES Skills 1 - Reading Exercise 1: Answer the following questions There are two main kinds of sports: team sports and individual sports. Team sports are such sports as baseball, basketball and volleyball. Team sports require two separate teams. The teams play against each other. They compete against each other in order to get the best score. For example, in a football game, if team A scores 4 goals and team B scores 3 goals, team A wins the game. Team sports are sometimes called competitive sports 1. How many kinds of sports are there in the world? ...................................................................................................................... 2. Can you name some team sports? ..................................................................................................................... 3. How many teams do team sports require? ..................................................................................................................... 4. Why do two separate teams compete against each other? ..................................................................................................................... 5. What are team sports sometimes called? ........................................................................................................................ Exercise 2: Complete the passage with the words from the box. Basketball is a pretty cheap (1)___________ to play in terms of equipment. So long as you have shoes and clothes and a ball, you can play. You can play with 1 hoop or 2, but it is way more fun to have a full court to (2)___________ on and several friends to do it with. Of course, you can have knee braces, expensive shoes, and some fancy jerseys if you want, but you can play (3)___________ them if you want. Basketball is a (4)___________ of 5-on-5. There are 5 different (5)___________: point guard, shooting guard, center, small forward, and power forward. Unlike some other sports, all players can (6)___________ points, and there is NO goalkeeper. There isn’t a (7)___________ position to play! Basketball has 4 quarters. For pro games, quarters are 15 minutes. Teams switch directions of play after (8)___________ quarter. score without sport each play game positions boring PHIẾU HƯỚNG DẪN TỰ HỌC TRƯỜNG THCS PASCAL
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1.People/advise /use/gas/cooking/so as to save/forests 2.I/set/alarm clock carefully/because/get up early
At the baseball game , many fans cheer for different teams and wear different colored baseball caps . A fraction of the caps are dark . Wich of the flowing choices shows an equivalent fraction of dark caps?
sẽ vote 5 sao và cảm ơn giúp mình bt như ảnh, chịu khó giúp mình vì bài dài ạ
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1,cho phương trình ẩn X. 9x^2-25-k^2-kx=0. A, giải phương trình với A=0. B, tìm các giá trị của k sao cho phương trình nhận x=-1 làm nghiệm
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