EX1: Các điểm số của bốn học sinh trong một bài kiểm tra toán học là 79, 83, 92 và 80. điểm của Linda là 6 nhiều hơn số điểm trung bình của bốn học sinh và điểm số của mình. số điểm của Linda trong các thử nghiệm toán học là gì?
mk chỉ biết dịch
a survey was conducted on 100 students in the beginning of the year. the findings are as follows: 56 students liked mathematics, 38 students liked english, 52 students liked science, 6 student liked both mathematics and english, 4 students liked both english and science, 12 students liked all the three subjects. how many students liked both mathematics and science, how many student liked only mathematics
Class A and Class B have the same number of students.
-The number of students in class A who took part in a mathematics competition is \(\frac{1}{3}\) of the studentsin Class B who did not take part.
-the number of students in class B who took part in a mathematics competition is \(\frac{1}{5}\)of the students in class A who đi not take part.
Find the ratio of the number of students in class A who did not take part in this competition to the number of students in class B who did not take part.
three lines dissect a big triangle into four triangles and three quadrilaterals. the sum of the perimeters of the three quadrilateral is 25 cm, the sum of the perimeters of the four triangle is 20 cm. the perimeter of the big triangle is 19 cm. how big is the sum of the lengths of the three dissecting lines?
In the fỉrst semester, the ratio between excellent student and the rest of this class are 3/7. In the next semester, there are 4 good students becomes excellent, so that the number of excellent are 2/3 the rest. How many students are there in this class?
McVees sell chocolate snacks in packets of 6 whereas Jays sell the same type of snack in packets of 5. Mr Scrooge is running a conference and wants to provide exactly one snack per person at the coffee break. Can he do this if he has to provide for 58 people? If he has to provide N people, what is the largest value of N where he will not be able to avoid buying more snacks than are needed?
McVees sell chocolate snacks in packets of 6 whereas Jays sell the same type of snack in pckets of 5. Mr Scrooge is running a coference and wants to provide exactly one snack per person at the coffee break. Can he do this if he has to provide for 58 people? If he has to provide N people, what is the largest value of N where he will not be able to avoid buying more snacks than are needed?
McVees sell chocolate snacks in packets of 6 whereas Jays sell the same type of snack in packets of 5. Mr Scrooge is running a conference and wants to provide exactly one snack per person at the coffee break. Can he do this if he has to provide for 58 people? If he has to provide N people, what is the largest value of N where he will not be able to avoid buying more snacks than are needed?
fill in each numbered balank with one suitable word
mary is a new english friend of ....... . She is very . to tell me about her new ...... Her lesson begin at nine each morning and .. until half past ten . the n she has a ...... for a quater of an hour . during this time she usualy talks to her friend about many thing such ....... the last class or last night 's movie , .... she has five .......... in the morning and three in the afternoon . marys favorite .... english . the firt tern lasts four month from september to december . mary tries her ............. to become a good student in the class .
fill in each numbered balank with one suitable word
mary is a new english friend of ....... . She is very . to tell me about her new ...... Her lesson begin at nine each morning and .. until half past ten . the n she has a ...... for a quater of an hour . during this time she usualy talks to her friend about many thing such ....... the last class or last night 's movie , .... she has five .......... in the morning and three in the afternoon . marys favorite .... english . the firt tern lasts four month from september to december . mary tries her ............. to become a good student in the class .
