1.Which statements is true? (1 Point) A ratio compares two or more quantities that are measured in the same unit. A ratio compares two or more quantities that are measured in the different unit. A ratio compares more than 3 quantities that are measured in the same unit. A ratio compares two or more quantities that have the same value. 2.What does this means when we say “ The ratio of the amount of sugar to the amount of salt is 2 : 3” (1 Point) Every 2 parts of salt must be mixed with 3 parts of sugar Every 2 parts of sugar must be mixed with 3 parts of salt Every 3 parts of salt must be mixed with 3 parts of sugar Every 2 parts of sugar must be mixed with 2 parts of sugar 3.The scale on a map is 1:400 000. A distance of 1 cm on the map represents a distance on the ground of (1 Point) 400000 km 4000 km 40 km 4 km 4.A bag contains red, green and yellow jelly snakes in the ratio 7:3:2. If there are 24 jelly snakes in the bag, how many of yellow snakes are there? (1 Point) 14 6 4 24 5.There are 450 students at a sports event. The ratio of girls to boys at the event is 8 to 7. How many girls are at the event? (1 Point) 240 30 210 250 6.Nancy, Evan and Jay put money into a business in the ratio 2:3:4. They share the profits in the same ratio. If the profit is $54 000, how much will Jay receive? (1 Point) $6 000 $13 500 $24 000 $49 000 7.A circle is divided into four sectors, with the sector angles in the ratio 1:2:3:4. What are the sizes of the smallest sector angles? (1 Point) 144 108 72 36

Tổng hợp kiến thức của bài 2 sgk sử 7 KO CHÉP MẠNG

Bài 2: trong hình dưới đây cho thấy một học sinh đang thực hiện đo chiều dài của một đoạn dây. a. từ hình vẽ hãy ước lượng chiều dài của sợi dây là bao nhiêu b. em hãy nêu các cách để học sinh có thể đo chính xác sợi dây hơn

Đặt câu điều kiện loại 2 với mẫu: - If I were the president of USA, I would/ could.........................

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II. Put the verbs in brackets in the correct verb form. 25. They (offer) __________________ free meals for the people in the flooded area so far. 26. Young children often volunteer (help) _________________ young children on holiday camps. 27. I (decide) _____________________ to sell my old house last month. 28. How long (you / be) ________________________ in Vietnam? III. Give the correct form of words. 29. The museum has received a $5 million _______________________ from the Bradley Foundation. (donate) 30. They opened a shelter to provide housing for the _______________________. (home) 31. WHO stands for World Health _______________________. (organize) 32. Many volunteers teach the _______________________ children in my village during summer vacation. (disable)

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viết 1 bài văn kể 1 kỉ niệm sâu sắc nhất với thầy cô ở tiểu học