Bottle A contains 15% syrup. Bottle B contains 40% syrup. When these 2 bottles of syrup are mixed, the syrup content is 30% and the total volume is 600ml. How much syrup is in the bottle A at first?
Answer: ..........ml.
Bottle A contains 15% syrup. Bottle B cotains 40% syrup.When these 2 bottles of syrup are mixed, the syrup content is 30% and the total volume is 600ml. How much syrup is in the bottle A at first ?
Answer :..............ml
bottle A contains 10% syrup.Bottle B contains 30% syrup.When trhe 2 bottle of syrup are mixed together , the syrup contest 25% and the total volume is 500 ml.How much syrup is in each bottle at first?
help
Question 7:Bottle A contains 15% syrup. Bottle B contains 40% syrup. When these 2 bottles of syrup are mixed, the syrup content is 30% and the total volume is 600ml. How much syrup is in the bottle A at first?
Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm2, 40cm2respectively and M is the midpoint of BD, then the area of the triangle AMD is .........cm2.
Question 14:Suppose that the polynomial f(x) = x5 - x4 - 4x3 + 2x2 + 4x + 1 has 5 solutions x1; x2; x3; x4; x5. The other polynomial k(x) = x2 - 4.
Find the value of P = k(x1) x k(x2) x k(x3) x k(x4) x k(x5)
câu 1: A rectangle has a length of 60cm and a width of 30cm. It is cut into 2 indentical squares, 2 identical rectangles and a shaded small square. Find the area of the shaded square.
Find the area of the shaded square.
câu 2.The number of ordered pairs (x; y) where x, y ∈ N* such that x2y2 - 2(x + y) is perfect square is ..........
câu 3.Let ABCD be the square with the side length 56cm. If E and F lie on CD, C respectively such that CF = 14cm and EAF = 45o then CE = ........cm.
câu 4.
Given P(x) = (x2 - 1/2 x - 1/2)1008
If P(x) = a2016x2016 + a2015x2015 + ..... + a1x + a0
then the value of the sum a0 + a2 + a4 + .... + a2014 is ...........
Let f(x) the polynomial given by f(x) = (1 + 2x + 3x2 + 4x3 + 5x4 + 84x5)
Suppose that f(x) = ao + a1x + a2x2 + ..... + ..... + a50x50.
The value of T = a1 + a2 + .... + a50 is .........
IV. Choose the word (a, b, c, or d) that best fits each of the blank spaces.
How can we keep our teeth (21) ______? Firstly, we ought to visit our (22) ____ twice a year. Secondly, we should brush our teeth (23) ____ a toothbrush and fluoride toothpaste at least twice a day, once after breakfast and once before we go to bed. We can also use toothpicks (24) _____between our teeth after a meal. Thirdly, we (25) ______ eat food that is good (26) ______ our teeth and our body: milk, fish, brown bread, raw vegetables, fresh fruit, etc.
21. a. health b. healthy c. healthily d. unhealthy
22. a. dentist b. doctor c. teacher d. engineer
23. a. on b. of c. by d. with
24. A. clean b. to clean c. cleaning d. to cleaning
25. a. should b. ought to c. need d. a & b
26. a. for b. at c. on d. to
V. Read the following passage and choose the item (a, b, c, or d) that best answers each of the questions about it.
A: Hi. Can I help you?
B: Yes, please. Could I have something fpr a cough? I think I’m getting a cold.
A: Well, I sugest a box of these cough syrup. And you should get a bottle of vitamin C, too.
B: Thank you. And what do you have for dry skin?
A: Try some of this new lotion. It’s very good.
B: OK. Thanks a lot.
27. What does the word ‘cold’ in line 2 mean?
a. low temperature b. not hot or warm
c. a common illness d. not heated or cooked
28. The first speaker suggested that the second speaker should buy_____.
a. a box of cough syrup b. a bottle of vitamin C
c. a new lotion for dry skin d. all are correct
29. The second speaker is a_______.
a. patient b. doctor c. dentist d. nurse
30. They are talking in a______.
a. theater b. stadium c. drugstore d. dentist’s
31. Which of the following is not true?
a. Vitamin C is good for a cold.
b. Cough syrup is good for a cough.
c. There is a new lotion for dry skin.
d. The second speaker doesn’t want to buy the new lotion.
21b
22a
23d
24b
25d
26a
27c
28d
29a
30c
31d
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How much is a bottle of milk?
A)How much a bottle of milk is there? B)How does a bottle of milk cost?
C)What is the price of a bottle of milk? D)How much milk is there in the bottle?
How much is a bottle of milk?
A)How much a bottle of milk is there? B)How does a bottle of milk cost?
C)What is the price of a bottle of milk? D)How much milk is there in the bottle?
A)How much a bottle of milk is there? B)How does a bottle of milk cost?
C)What is the price of a bottle of milk? D)How much milk is there in the bottle?
THE STORY OF COCA-COLA
Coca-Cola was invented in 1886 by John Pemberton, a druggist living in Atlanta. The original drink was a type of syrup, using coca leaves, sugar and cola nuts, plus a few other secret ingredients! Pemberton sold it as a medicine; and with its coca (the source of cocaine), it must have made people feel good!
Nevertheless, Pemberton’s medicine was not very successful, so he sold his secret formula to another druggist, Asa Candler. Candler was interested, because he had another idea that Pemberton’s “medicine” would be much better if it was mixed with soda. Candler was thus the man who really invented the drink Coca-Cola. Candler also advertised his new drink, and soon people were going to drugstores just to get a drink of Coca-Cola.
Before long, other people became interested in the product, including a couple of businessmen who wanted to sell it in bottles. Candler sold them a licence to bottle the drink, and very quickly the men became millionaires. The famous bottle, with its very distinctive shape, was designed in 1916. And the famous Coca-Cola logo is the most famous logo in the world. Unlike any other famous commercial logos, it has not changed in 100 years!
During the First World War, American soldiers in Europe began asking for Coca-Cola, so the Coca-Cola company began to export to Europe. It was so popular with soldiers that they then had to start bottling the drink in Europe.
Today, Coca-Cola is made in countries all over the world, including Russia and China; it is the world’s most popular drink.
As for the famous formula, it is probably the world’s most valuable secret! The exact ingredients for making Coca-Cola are only known to a handful of people. And as for the “coca” that was in the original drink, that was eliminated in 1903. It was a drug, and too dangerous. Today’s Coca-Cola contains caffeine, but not cocaine!
87. According to the passage, Coca-Cola was first introduced in ____.
A. America B. China C. Europe D. Russia
88. According to the passage, the original drink made people feel good because it contained ____.
A. coca leaves B. cola nuts C. secret ingredients D. sugar
89. It is stated in the passage that Candler was interested in the product because he thought ____.
A. he could develop the original formula by adding soda
B. he would sell it and quickly became a millionaire
C. it was an useful medicine which made people feel good
D. Pemberton’s medicine was very famous and successful
90. The word “licence” in the passage is closest in meaning to ____.
A. certificate B. permission C. charter D ticket
91. The word “distinctive” in the passage is opposite in meaning to ____.
A. normal B. original C. ugly D unique
92. When were the Coca-Cola’s bottle shape and logo designed according to the passage?
A. in 1886 B. in 1916 C. in 1930 D. in 1986
93 The word “eliminated” in the passage probably means ____.
A. banned B. destroyed C. erased D. excluded
94. According to the passage, what is NOT true about the formula of Coca-Cola ?
A. It is probably the world’s most priceless secret.
B. It was really invented by the druggist. Asa Candler.
C. Its exact ingredients are well known to many people.
D. Its ingredient was changed from cocaine to caffeine.
87. According to the passage, Coca-Cola was first introduced in ____.
A. America B. China C. Europe D. Russia
88. According to the passage, the original drink made people feel good because it contained ____.
A. coca leaves B. cola nuts C. secret ingredients D. sugar
89. It is stated in the passage that Candler was interested in the product because he thought ____.
A. he could develop the original formula by adding soda
B. he would sell it and quickly became a millionaire
C. it was an useful medicine which made people feel good
D. Pemberton’s medicine was very famous and successful
90. The word “licence” in the passage is closest in meaning to ____.
A. certificate B. permission C. charter D ticket
91. The word “distinctive” in the passage is opposite in meaning to ____.
A. normal B. original C. ugly D unique
92. When were the Coca-Cola’s bottle shape and logo designed according to the passage?
A. in 1886 B. in 1916 C. in 1930 D. in 1986
93 The word “eliminated” in the passage probably means ____.
A. banned B. destroyed C. erased D. excluded
94. According to the passage, what is NOT true about the formula of Coca-Cola ?
A. It is probably the world’s most priceless secret.
B. It was really invented by the druggist. Asa Candler.
C. Its exact ingredients are well known to many people.
D. Its ingredient was changed from cocaine to caffeine.
87. According to the passage, Coca-Cola was first introduced in ____.
A. America B. China C. Europe D. Russia
88. According to the passage, the original drink made people feel good because it contained ____.
A. coca leaves B. cola nuts C. secret ingredients D. sugar
89. It is stated in the passage that Candler was interested in the product because he thought ____.
A. he could develop the original formula by adding soda
B. he would sell it and quickly became a millionaire
C. it was an useful medicine which made people feel good
D. Pemberton’s medicine was very famous and successful
90. The word “licence” in the passage is closest in meaning to ____.
A. certificate B. permission C. charter D ticket
91. The word “distinctive - khác biệt” in the passage is opposite - trái nghĩa in meaning to ____.
A. normal - bình thường B. original - nguyên bản C. ugly - xấu xí D unique - độc đáo
92. When were the Coca-Cola’s bottle shape and logo designed according to the passage?
A. in 1886 B. in 1916 C. in 1930 D. in 1986
93 The word “eliminated” in the passage probably means ____.
A. banned B. destroyed C. erased D. excluded
94. According to the passage, what is NOT true about the formula of Coca-Cola ?
A. It is probably the world’s most priceless secret.
B. It was really invented by the druggist. Asa Candler.
C. Its exact ingredients are well known to many people.
D. Its ingredient was changed from cocaine to caffeine.
EX1: Complete the second sentence so that it has a similar meaning to the first,using the word given.Do not change the word given.You must use between two and five words,including the word given
1. I am certain that this syrup will have a good effect on your sore throat. (DO)
-> I am certain that this syrup ___________ for your sore throat.
2. You have to work hard to compensate for the lost time.(MAKE)
-> You have to work hard to ___________ the time you have lost.
3My brother has annoying habit of leaving his clothes lying around (ALWAYS)
->My brother __________ his clothes lying around.
4. I haven't heard from Jason for two week. (TIME)
-> The______________ Jason was two weeks ago.
5.We still haven't decided where to go on holiday.(UP)
-> We still haven't _____________ about where to go on holiday.
6. I didn't expect things to happen the way they did. (OUT)
-> I didn't expect ___________ the way they did.
1.will do good
2.make up
3.always leaves
4.last time I heard from
5.made up our minds
6.things to turn out