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It is incorrect to say that 10 is neither positive nor negative. 2 the smallest integer is zero. 3 a rational number is either an integer or a fraction Rational numbers are divided into positive numbers, zero numbers and negative numbers
2 and 4
2: There is no smallest integer
4: Real numbers are divided into positive, zero and negative numbers
The set of rational numbers is () a the set of positive and negative numbers B the set of positive integers, negative integers and fractions C the set of integers and fractions D and integers
The set of D integers and negative numbers
The set of C integers and fractions
The following statements: ① rational numbers refer to integers and fractions; ② rational numbers refer to positive and negative numbers; ③ there is no maximum rational number, and the minimum rational number is 0; ④ the absolute value of rational numbers is non negative; ⑤ when several numbers are multiplied, when the number of negative factors is odd, the product is negative; ⑥ the reciprocal is equal to its own rational number only 1
A. 2 b. 3 C. 4 d. more than 4
① Correct, in line with the definition of rational number; ② wrong, there is 0; ③ wrong, there is no maximum rational number, there is no minimum rational number; ④ correct, in line with the nature of absolute value; ⑤ wrong, there is an error when there is 0; ⑥ there is - 1, so choose a
The rational number of a number that is neither positive nor negative is a positive number but not an integer---------
What is neither positive nor negative is 0, which is the positive fraction of rational number
In rational numbers, the number that is a fraction but not a negative fraction is (), and the smallest positive integer is ()
1132016118,
In rational numbers, the number that is a fraction but not a negative fraction is (positive fraction), and the smallest positive integer is (1)
Is 0 a rational number, an integer, a fraction, a positive integer, a negative integer, or a natural number?
0 is neither a positive nor a negative number, but a number between a positive number and a negative number. When a number x is greater than 0 (x > 0), it is called a positive number; otherwise, when x is less than 0 (x > 0), it is called a positive number
3.14 is a rational integer fraction positive integer negative fractional natural number
-7 is a rational number and an integer
-3.14 is rational number, fraction and negative fraction
0 is a rational number, an integer and a natural number
Two thirds are rational numbers, fractions
Is two-thirds a rational number, an integer, a fraction, a positive integer, a negative fraction, or a natural number?
Rational numbers and fractions
5 π is a rational integer fraction, a positive integer fraction, a negative fraction, and a natural number
5 π is irrational
Xiao Ming and his classmates went to the bookstore to buy books. They first bought a popular science book with 15 yuan, and then bought a literature book with 15 yuan. The price of popular science book is half higher than that of literature book. Therefore, they bought more literature books than popular science book. What are the prices of popular science book and literature book?
Suppose the prices of popular science and literature books are respectively X and Y yuan, then x = 32y15y − 15x = 1, the solution is x = 7.5, y = 5, that is, the prices of popular science and literature books are 7.5 yuan and 5 yuan respectively
RELATED INFORMATIONS
- 1. Ask some eighth grade math fractional equation questions I have a question in my book, which is (100 / x) = (30 / X-7) Multiply both sides of the equation by X (X-7) at the same time, and remove the denominator to get 100 (X-7) = 30x If we solve this integral equation, we get x = 10 Test: substituting x = 10 into x (X-7), we get 10 × (10-7) ≠ 0 Just tell me in this way! 1.(x+1/x-1)-(4/x²-1)=1 2.(4x/2x-1)=(2x+1/x-2) 3.(7/x²+x)-(3/x-x²)=1+(7-x²/x²-1) 4.(x-2/x+1)-(16/x²-4)=1 5.(2-x/3+x)-(1/2)=(1/x+3)
- 2. Simplify | 2x + 1 | - | x + 1 | to solve the equation | 2x + 1 | = | 5x + 7 | to find the minimum value of | x-3 | + | X-5 | + | X-7 | Please help the experts to answer, thank you very much!
- 3. X - three fifths x = eight ninths. How about x
- 4. It is known that A1, A2, A3, A4 and A5 are five different integers satisfying the condition a1 + A2 + a3 + A4 + A5 = 9. If B is the integer root of the equation (x-a1) (x-a2) (x-a3) (x-a4) (x-a5) = 2009 about X, then the value of B is______ ．
- 5. If the line ax + y + 1 = 0 and the line 4x + 2Y + B = 0 are symmetric with respect to the point (2, - 1), find the values of a and B
- 6. When a changes in the interval (0,2), find the minimum value of the quadrilateral enclosed by the line and 2 coordinates
- 7. If the lines ax-y + 8 = 0 and x-2y + 1 = 0 are perpendicular to each other, what is the value of the real number a Help! Urgent ~
- 8. X cube + 4x square y + 4xy square
- 9. Use the method of addition and subtraction to solve the following equations: the first problem x-2y = 13X + 2Y = 11, the second problem 2x-y = 33x + y = 7
- 10. Urgent, X squared + 3x + 2 / 2 X-1 + 2 + x-x squared - 4-x squared 10-x, OK fast The square of X + 3x + 2 parts of X-1 + 2 + 6 parts of x-x - 4 parts of X 10-x fraction operation
- 11. The following statement is correct: a all rational numbers have reciprocal; B all fractions are rational; C all decimals are rational; d all integers are positive
- 12. If x ^ 2 + 6x + K ^ 2 is exactly the square of an integer, then the value of the constant k is A 9 B 3 C -3 D + 3 or - 3 Why?
- 13. (254m-1011) divide by 375 to get the minimum M,
- 14. When n______ The equation (X-P) 2 + n = 0 has a solution______ ．
- 15. If the equation m minus 1 divided by x minus 1 minus x plus 2 divided by x minus 1 equals 0, then M equals 0
- 16. Elementary school simple equation knowledge
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- 18. Solving the equation of grade five in primary school The store shipped 400 kg of fruit candy and 240 kg of chocolate. After each sold the same amount, the fruit candy was 4.2 times that of chocolate. How many kg of fruit candy and chocolate do you want to sell?
- 19. The fifth grade of primary school equation, etc Somebody got 240 yuan There are three kinds of RMB, 2 yuan, 5 yuan and 10 yuan, a total of 50 pieces Among them, the number of 2 yuan and 5 yuan are the same How many pieces are there for 10 yuan? Express it in equation. Thank you. I'm teaching my niece. It doesn't matter if I'm old
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