At NTUC FairPrice, Auntie Lim buys $n$ packets of biscuits at $2.50 each and pays an extra $1.20 for a reusable bag. Her total cost in dollars is given by the expression $2.50n + 1.20$. What does the term $2.50n$ represent?
Show Worked Solution
Worked Solution
Step 1: Identify each term. The expression has two parts: 2.50n and 1.20.\n
Step 2: 2.50 is the price per packet, and n is the number of packets. Multiplying price by quantity gives total cost.\n
Step 3: So 2.50n represents the total cost of the n biscuit packets only.
Answer: The total cost of all the biscuit packets
Correct answer: The total cost of all the biscuit packets
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