In a competitive exam, there are 50 questions. Students can score 3 marks for each correct answer while 2 marks are subtracted for each incorrect answer. If Mary answered 18 questions correctly, how many marks did she get?
Alice’s mathematics exam had 30 algebra questions and 50 geometry questions, each worth 1 mark. She got 70% of the algebra questions correct, and 60% of her questions correct. How many geometry questions did she answer correctly?
cảm ơn cậu nhưng trên máy nó đề là 27
ai iups mình nhớ hi lời giải đầy đũ nhá
Alice’s mathematics exam had 30 algebra questions and 50 geometry questions, each worth 1 mark. She got 70% of the algebra questions correct, and 60% of her questions correct. How many geometry questions did she answer correctly?
She answered : 50. (60/100)= 30 geometry questions
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Lessons from the _____ developed countries are worth learning to save our time.
A. economically
B. economic
C. economize
D. economical
Đáp án A
Cụm từ: economically developed country: nước có nền kinh tế phát triển
Alice’s mathematics exam had 30 algebra questions and 50 geometry questions, each worth 1 mark. She got 70% of the algebra questions correct, and 60% of her questions correct. How many geometry questions did she answer correctly?
Answer: ………….. questions.
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Read the following passage, and answer the questions that follow
On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.
A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.
How many houses did the volcanic eruption in Hawaii demolish?
____________________________________________________________
Đáp án: It demolished/ destroyed 700 homes/ houses.
Find and correct the mixtake:
1.He would like Lan telling him something about HCM city.
2.There are many places worth to see in HCM city.
3.It was too windy so they have to sleep in the car.
4.I will ask the driver stopped the car.
5.The boy injuring in the accident was taken to hospital.
6.Many people are helping him by the rest of work. He is too tired to continue.
7.Everyone in the audience was enjoy his speech.
8.This is a breaking vase. We can not use it to contain water.
9.We don't mind to be asked many questions. Make as many questions as possible.
Find and correct the mixtake:
1.He would like Lan telling=>to tell him something about HCM city.
2.There are many places worth to see=>seeing in HCM city.
3.It was too windy so=>so windy that they have to sleep in the car.
4.I will ask the driver stopped=>to stop the car.
5.The boy injuring=>injured in the accident was taken to hospital.
7.Everyone in the audience was enjoy=>enjoyed his speech.
8.This is a breaking=>broken vase. We can not use it to contain water.
9.We don't mind to be=>being asked many questions. Make as many questions as possible.
Nam had a test with 25 questions. If his answer is right, 7 points is added and 2 points is subtracted for each wrong answer. No points are taken for unanswered questions. Finally Nam has got 95 points. How many questions did Nam answer correctly?
Read the following passage, and answer the questions that follow
On April 30, 2018 the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano, suddenly collapsed. It was the starting point for the volcano’s months long eruption, which went on to produce 320,000 Olympic-sized swimming pools’ worth of lava that transformed the landscape and ultimately destroyed 700 homes.
A volcanic eruption occurs when hot materials from the Earth's interior are thrown out of a volcano. Some eruptions are terrible explosions that throw out huge amounts of rock and volcanic ash and can kill many people. Some are quiet outflows of hot lava. Several more complex types of volcanic eruptions have been described by volcanologists. These are often named after famous volcanoes where that type of eruption has been seen. Some volcanoes may show only one type of eruption during a period of activity, while others may show a range of types in a series.
When did the Pu’u ‘O’o crater on Hawaii’s Kilauea volcano collapse?
___________________________________________________________
Đáp án: It collapsed on April 30, 2018.