This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
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alishabayambumagar, let's knock this out. 8. a) i) Write a mathematical expression to show the above information. Step 1: Calculate the total cost of the pencils. Cost of pencils = 6 × 8 Step 2: Subtract the total cost from the amount Sunayana paid. The mathematical expression is: 50 - (6 × 8) ii) Simplify the expression and find how much change did the shopkeeper return her? Step 1: Perform the multiplication inside the parentheses. 50 - (6 × 8) = 50 - 48 Step 2: Perform the subtraction. 50 - 48 = 2 The shopkeeper returned Rs 2. Rs 2 8. b) i) Write a mathematical expression for the above information. Step 1: Calculate the total cost of the exercise books. Cost of exercise books = 6 × 40 Step 2: Add the cost of the eraser to the cost of the books to find the total expenditure. Total expenditure = (6 × 40) + 10 Step 3: Subtract the total expenditure from the amount Anil paid. The mathematical expression is: 500 - ((6 × 40) + 10) ii) How much change did the shopkeeper return him? Step 1: Perform the multiplication inside the inner parentheses. 500 - ((6 × 40) + 10) = 500 - (240 + 10) Step 2: Perform the addition inside the parentheses. 500 - (240 + 10) = 500 - 250 Step 3: Perform the subtraction. 500 - 250 = 250 The shopkeeper returned Rs 250. Rs 250 Send me the next one 📸