Dịch: Biết x/y=1/5 và x.y=5, vậy x là? (x là số nguyên dương)
x.y=5
=> x=1 hoặc 5
x/y=1/5
x không thể là 5 => x=1
Dịch: Biết x/y=1/5 và x.y=5, vậy x là? (x là số nguyên dương)
x.y=5
=> x=1 hoặc 5
x/y=1/5
x không thể là 5 => x=1
The mean, median, and unique mode of the positive integers 3,4,5,6,7 and x are all equal. What is the value of x ?
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.
Question 1:
If then n: n =
Question 2:
If then 0:p=
Question 3:
If then n =
Question 4:
Calculate: 427 – (127+120) =
Question 5:
Find x such that 1014 : (124 – x) =13
Answer: x =
Question 6:
Find x such that
Answer: x=
Question 7:
If x : 7 = x : 6 then x =
Question 8:
999 divided by 3 is the same as 9 times M. Find M
Answer: M =
Question 9:
Find x such that
Answer: x=
Question 10:
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is
The number N is the product of two primes.The sum of the positive divisors of N that are less than N is 2014.Find the value of N.
Question 2:
The number of factors of 120 is
Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=()
Question 6:
The 215th term of the expression A=1-7+13-19+25-31+⋯ is
Question 7:
A natural number will be increased by 9 times ifthe digit 0 is written between tens digit and units digit.The number is
Question 8:
Calculate: 1×2+2×3+⋯+100×101=
Question 9:
The root of the equation (x+1)+(x+2)+(x+3)+⋯+(x+100)=5750 is x=
Question 10:
The sum of digits of 31000 is A,the sum of digits of A is B,and the sum of digits of B is C.The value of C is
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is
Câu 1: Given that is divisible by 9. What is the value of ?
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number so that the product of and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is