Question 15 of 17intermediate✨ CreateShort Answer4 marks
Describe situations corresponding to the following algebraic expressions: (a) 8 × x + 3 × y (b) 15 × j - 2 × k
(a)
Answer
Cost of x items at ₹8 each plus cost of y items at ₹3 each. For example: notebooks at ₹8 and pens at ₹3.
(b)
Answer
Total of 15j minus 2k. For example: earnings of ₹15 per hour for j hours minus penalty of ₹2 per mistake for k mistakes.
Explanation
(a) This expression adds two products, representing total cost or earnings from two sources. (b) This expression subtracts one product from another, representing net amount after deduction.