Question 17 of 17intermediate✨ CreateShort Answer4 marks
Describe situations corresponding to the following algebraic expressions: (a) 8x + 3y (b) 15x - 2x
(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
This simplifies to 13x. It could represent: having 15x items and giving away 2x items, leaving 13x items.
Explanation
(a) This expression adds two products, representing total cost or earnings from two different items. (b) Since both terms have the same letter-number x, they are like terms and can be combined: 15x - 2x = 13x.