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9 tháng 12 2016

một giáo viên có một túi kẹo cho học sinh của mình. Nếu mỗi học sinh được đưa ra 4 cái kẹo, số kẹo còn lại là 4. Nếu mỗi học sinh được đưa ra 5cái, nhất định sẽ bị thiếu 20 cái kẹo . Có bao nhiêu sinh viên đang học?

22 tháng 3 2021
Đề bài là gì đấy bạn
14 tháng 12 2016

bằng 24

4 tháng 1 2019

tớ làm rồi tệ lắm

30 tháng 11 2017

Gọi số học sinh là a
Theo bài ra ta có: 
4 x a + 4 = 5 x a - 20
5 x a - 4 x a = 20 + 4
a = 24

8 tháng 6 2018

8 hoc sinh

80 keo

5 tháng 1 2019

Một giáo viên có một túi đồ ngọt để đãi lớp cô. Nếu cô ấy đưa 4 kẹo cho mỗi học sinh, thì cô ấy sẽ còn lại 82 kẹo. Nếu đưa 9 viên kẹo cho mỗi học sinh, thì cô ấy sẽ còn lại 2 viên kẹo. Có bao nhiêu đồ ngọt?

5 tháng 1 2019

180 chiếc nha bn 

30 tháng 8 2020

e chỉ biết mỗi đề bài thôi chứ bài này khó lắm

Đề bài:

Ann và Bob có một số lượng lớn đồ ngọt mà họ đồng ý chia sẻ theo các quy tắc sau. Ann sẽ lấy một viên ngọt, sau đó Bob sẽ lấy hai viên kẹo và sau đó thay phiên nhau, mỗi người lấy một viên ngọt hơn những gì người kia vừa lấy. Khi số kẹo còn lại ít hơn số kẹo sẽ lấy ở lượt đó thì người cuối cùng lấy hết số kẹo còn lại. Trước sự ngạc nhiên của họ, khi họ ăn xong, họ đều có số kẹo như nhau

Họ quyết định thực hiện chia lại lần nữa, nhưng lần này, trước tiên, họ chia kẹo thành hai đống bằng nhau và sau đó lặp lại quy trình trên với mỗi đống. Ann đi đầu tiên cả hai lần. Họ vẫn kết thúc với cùng một số lượng kẹo mỗi loại.

Số lượng đồ ngọt tối đa ít hơn 1000 mà họ có thể bắt đầu bằng là bao nhiêu?

Answer the questions.Choose ONE WORD OR A NUMBER from the passage for each answerHow our sweet tooth is hurting usOver the last three centuries, the amount of sugar in the Western diet has continued to rise. Back at the start of the18th century, a typical English family consumed less than 2 kg of sugar per year. By the end of that century, that amount had risen 400%. Compare that to the 40 kg that people now consume annually in the USA. In Germany, the second-most sugar-loving nation in the...
Đọc tiếp

Answer the questions.

Choose ONE WORD OR A NUMBER from the passage for each answer

How our sweet tooth is hurting us

Over the last three centuries, the amount of sugar in the Western diet has continued to rise. Back at the start of the18th century, a typical English family consumed less than 2 kg of sugar per year. By the end of that century, that amount had risen 400%. Compare that to the 40 kg that people now consume annually in the USA. In Germany, the second-most sugar-loving nation in the world, people eat roughly 103 grams on average per day. In the Netherlands, the country with the third-biggest sweet tooth, people eat 102.5 grams. Of course, there are some countries in the world where sweet food is less popular: in India, peopleeat only about 5 grams per day on average; in Indonesia, it’s 14.5 grams; and in China, it’s just under 16 grams. If you’re not sure what 40 kg looks like, it means that the 
average person in the USA now eats approximately 22 teaspoons of sugar a day. Therecommended limit, suggested by researchers from the World Health Organisation, is no more than 8 if you want to stay healthy, but just one can of soda contains around 10.It is common knowledge that many drinks, in bottles or canned, contain a lot of sugar. Although advertisements say that they are ‘energy-giving’, professional athletes and sportsmen and women usually stay away from them. It is teenagers that are their greatest consumers. And –although advertisers promise that these drinks will make people feel energetic and active –because of the type of chemicals they have, once a person has drunk all the soda, they simply feel hungry instead. However, sugar is also in products that many shoppers find surprising, for example, cereal, which actually hasa lot. Because they believe it is a healthy kind of food, parents buy it for their children’s breakfast.A large part of the problem, according to nutritionists, is that people find it hard to understand the labels on the back of food products. Nutritionists think this should be a lot easier for them. But at the moment, manufacturers don’t have to write ‘sugar’ on them, but can use words like ‘corn syrup’ or ‘dextran’, which can result in confusion for consumers. But why should we be worried about our sugar consumption? Firstly, it is harmful to young children because it causes tooth decay; the pain from this can mean that children don’t get the amount of sleep they need. As a result, they can’t concentrate when they are in class. In this case, schools and governments have a duty to educate them about good and bad food choices. For adults, the problems increase. Eating too much sugar makes people quickly gain weight, it affects the heart and liver, and can lead to diabetes.

1.Which country consumes the least sugar per person? __________________

2.What is the maximum recommended number of teaspoons of sugar that a person should consume a day?  ________________

3.Which group of people drink more sugary drinks than anyone else? ________________

4.How do people really feel after finishing sugary drinks? ________________

5.Which food product has an unexpected amount of sugar? ________________

6.What do nutritionists want to be clearer for consumers? ___________________

7.What may decrease as a result of tooth decay in children? _________________

2
16 tháng 5 2022

1.Which country consumes the least sugar per person? _____India_____________

2.What is the maximum recommended number of teaspoons of sugar that a person should consume a day?  ______8__________

3.Which group of people drink more sugary drinks than anyone else? ________teenagers________

4.How do people really feel after finishing sugary drinks? _______energetic and active_________

5.Which food product has an unexpected amount of sugar? ______cereal__________

6.What do nutritionists want to be clearer for consumers? ________ labels on the back of food products___________

7.What may decrease as a result of tooth decay in children? ________educate_________

16 tháng 5 2022

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Sugar tastes sweet because of thousands of receptors on the tongue which connect the substance with the brain. The taste of sweetness is universally accepted as the most pleasurable known, although it is a fructose. Abundant is the most common occurring sugar, (1)______ of which include fruit and honey. Sucrose, which supplies glucose to the body, is (2)______  from the sugar cane plant, and white sugar (pure sucrose) is used by food technologists to (3)______ sweetness in other substances....
Đọc tiếp

Sugar tastes sweet because of thousands of receptors on the tongue which connect the substance with the brain. The taste of sweetness is universally accepted as the most pleasurable known, although it is a fructose. Abundant is the most common occurring sugar, (1)______ of which include fruit and honey. Sucrose, which supplies glucose to the body, is (2)______  from the sugar cane plant, and white sugar (pure sucrose) is used by food technologists to (3)______ sweetness in other substances. Approximately a dozen artificial sweeteners have been discovered; one of the earliest was Sorbitol from France.

Manufacturers add large amounts of sugar to foodstuffs but never more than the (4)______ required to produce the optimum pleasurable taste. Surprisingly, this amount is similar for different people and in different cultures. No one has (5)______ discovered a way to predict whether a substance will taste sweet, and it was by chance alone that all the man-made chemical sweeteners were found to be sweet.

Điền vào số 4

A. maximum

B. excess

C. extremity

D. limit

1
10 tháng 3 2019

Đáp án A

Gii thích: maximum (lượng tđa)

Dch: Các nhà sản xuất thêm lượng lớn đường vào thực phẩm nhưng không bao giờ vượt quá mức tối đa cần thiết để tạo ra hương vị dễ chịu nht.

Sugar tastes sweet because of thousands of receptors on the tongue which connect the substance with the brain. The taste of sweetness is universally accepted as the most pleasurable known, although it is a fructose. Abundant is the most common occurring sugar, (1)______ of which include fruit and honey. Sucrose, which supplies glucose to the body, is (2)______  from the sugar cane plant, and white sugar (pure sucrose) is used by food technologists to (3)______ sweetness in other substances....
Đọc tiếp

Sugar tastes sweet because of thousands of receptors on the tongue which connect the substance with the brain. The taste of sweetness is universally accepted as the most pleasurable known, although it is a fructose. Abundant is the most common occurring sugar, (1)______ of which include fruit and honey. Sucrose, which supplies glucose to the body, is (2)______  from the sugar cane plant, and white sugar (pure sucrose) is used by food technologists to (3)______ sweetness in other substances. Approximately a dozen artificial sweeteners have been discovered; one of the earliest was Sorbitol from France.

Manufacturers add large amounts of sugar to foodstuffs but never more than the (4)______ required to produce the optimum pleasurable taste. Surprisingly, this amount is similar for different people and in different cultures. No one has (5)______ discovered a way to predict whether a substance will taste sweet, and it was by chance alone that all the man-made chemical sweeteners were found to be sweet.

Điền vào số 5

A. just

B. yet

C. still

D. already

1
17 tháng 4 2018

Đáp án B

Gii thích: "to have yet + P.P": vn chưa làđượđiu gì đó

Dch: Vẫn chưa có ai phát minh ra cách dự đoán xem 1 chất nào đó có vị ngọt hay không.