Selina solutions

Selina solutions

Grade 6

Fundamental Concepts (Algebra) | Revision Exercise

Question 10

Q10) State whether true or false :

(i) If 23 is a constant and x is a variable, 23 + x is constant.

(ii) If 23 is a constant and x is a variable, 23x is a variable.

(iii) If y is a variable and 57 is a constant, y – 57 is a variable.

(iv) If 3x and 2y are variable; each of 3x + 2y, 3x – 2y, 3x ÷ 2y and 3x × 2y is a variable.

Solution 10:

(i) False

Sum of a constant and a variable is also variable

(ii) True

Product of a constant and a variable is variable

(iii) True

Constant subtracted from a variable is also variable

(iv) True

Sum, difference product or quotient of two variable is also variable

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Question 10

Q10) State whether true or false :

(i) If 23 is a constant and x is a variable, 23 + x is constant.

(ii) If 23 is a constant and x is a variable, 23x is a variable.

(iii) If y is a variable and 57 is a constant, y – 57 is a variable.

(iv) If 3x and 2y are variable; each of 3x + 2y, 3x – 2y, 3x ÷ 2y and 3x × 2y is a variable.

Solution 10:

(i) False

Sum of a constant and a variable is also variable

(ii) True

Product of a constant and a variable is variable

(iii) True

Constant subtracted from a variable is also variable

(iv) True

Sum, difference product or quotient of two variable is also variable

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