Identify the constants and the
variables in the following expression:
3k²–12k+6
Answers
Answer:
CONSTANTS - THOSE NUMBERS WHICH ARE FIXED AND CANNOT CHANGE THERE VALUES
VARIABLES - THESE ARE ALPHABETS WHICH ARE USED AS ASSUMING DURING FINDING THE UNKNOWN VALUE . THE VALUE OF VARIABLE IS NOT FIXED .
Step-by-step explanation:
IN THIS TERM ,
VARIABLES - ONLY K
CONSTANTS - 3 , 12 AND 6
HOPE YOU ARE SATISFIED WITH THIS ANSWER
Answer:
1. Separate, constants and variables from the following:
5, 6z, -12x, 7/5, 3/4xz, mn, 2p, 0, 3x/4, 7/12k, -pt/2m, 1/2
2. State whether the following statements are true or false:
(i) 12 is a constant and z is a variable but 12z is variable.
(ii) 7 is constant and p is variable but together 7 + p is a variable.
(iii) 13 is constant and m is variable but together 13 - m is a constant.
(iv) 11 is constant and n is variable but together 11 n is a constant.
(v) 0 is a variable.
(vi) Combination of both a constant and a variable is also variable.
(vii) A quantity which takes a fix numerical value is called variable.
(viii) A quantity or symbol which has a no fixed value but it can represent any numerical values is called variable.
(ix) 15x, z/3, 7/m are some of the examples of constants.
(x) x, a + b, c – 2, a 13 are some of the examples of variables.
3. Fill in the blanks:
(i) In -3x, _____ is constant and _____ is variable.
(ii) In 10ab, _____ is constant and _____ are variables.
(iii) In 15mn/k, _____ is constant and _____ are variables.
(iv) In 27a/8b, _____ are constants and _____ are variables.
4. 91y + 5, find the constants.
5. 32m + 9n, find the variables.
Answers for the worksheet on constants and variables are given below to check the exact answers of the above questions.
Answers:
1. 5, 7/5, 0 and 1/2 are constants.
6z, -12x, 3/4xz, mn, 2p, 3x/4, 7/12k, -pt/2m are variables.
2. (i) True
(ii) True
(iii) False
(iv) False
(v) False
(vi) True
(vii) False
(viii) True
(ix) False
(x) True
3. (i) In -3x, -3 is constant and x is variable.
(ii) In 10ab, 10 is constant and a and b are variables.
(iii) In 15mn/k, 15 is constant and m, n and k are variables.
(iv) In 27a/8b, 27 and 8 are constants and a and b are variables.
4. 91 and 5 are the constants.
5. m and n are the variables.
● Constants and Variables
6th Grade Math Practice
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