A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat?
Answer: ........ students.
Toán tiếng Anh : A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat? Answer: {} students
A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat?
There are 18 students have neither a dog or a cat
_ Study well _
Toán tiếng Anh : A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat? Answer: {} students
Toán tiếng Anh : A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat? Answer: {} students
A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.How many of the 120 students have neither a dog nor a cat ?
A survey showed that of 120 secondary stuents :52 of them have a dog , 31 of them has a cat , and 19 have both. How many of 120 stuedents have neither a dog nor a cat
toan quoc te nha
Question 1:
There are two parallel lines in the figure. What is the value of x?
Answer: x =
Question 2:
ABC and RTS are similar triangles.
The value of x is
Question 3:
If x<0 and 5x+8+|3x|=0 then x=
Question 4:
I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?
Answer:
Question 5:
How many triples of integers (a,b,c) are there such that
?
Answer: triples.
Question 6:
Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. Twenty students have a dog and 24 students have a cat.
How many students have both a dog and a cat?
Answer: students.
Question 7:
The sum of 2 positive integer numbers is greater than their product if the smaller number is
Question 8:
How many different real numbers satisfy the following equation?
Answer:
Question 9:
The area of trapezoid ABCD is 180 .The altitude is 8 cm,AD is 10 cm,and BC is 17 cm.
What is AB,in centimeters?
Answer: cm.
Question 10:
There are 115 cars in a village of 26 families. Each family has either 4 or 5 cars.
How many families have 4 cars?
Answer: families.
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.
The Internet has truly transformed how students do their homework. (46) ____ homework today still means spending time in the library, it’s for a different reason. Rather than using books for research, students today are (47) ______ to the Internet to download enormous amounts of data available online. In the past, students were limited to their school’s (48) _________ of books. In many cases, they got to the school library and found out that someone had already taken the books they needed. Nowadays, such inconvenience can be avoided since the Internet never runs out of information. Students, however, do have to (49)_____ sure that the information they find online is true. Teachers have also benefited from the homework which is done on the Internet. They do not need to carry students’ papers around with them any more. This is because online (50)______ allow students to electronically upload their homework for their teachers to read and mark. Of course, this also means that students can no longer use the excuse that the dog ate their homework!
Điền vào số (50)
A. systems
B. materials
C. sources
D. structures
Đáp án A
online system: hệ thống trực tuyến.
Các đáp án còn lại:
B. materials: chất liệu.
C. sources: nguồn.
D. structures: cấu trúc.