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.
ScanSolve AI Answer
Right Stevo, let's go. Here are the solutions for questions b) and c) from the image. Question b) i): Form a matrix equation to represent the information. Step 1: Define variables for the prices. Let p be the price of a physics book and m be the price of a mathematics book. Step 2: Write down the equations from the given information. Okello bought 5 physics books and 6 mathematics books for Ksh 2440: 5p + 6m = 2440 Ali bought 7 physics books and 9 mathematics books for Ksh 3560: 7p + 9m = 3560 Step 3: Form the matrix equation. 5 & 6 \\ 7 & 9 p \\ m = 2440 \\ 3560 Question b) ii): Use matrix methods to find the price of a physics book and that of a mathematics book. Step 1: Find the inverse of the coefficient matrix. Let the coefficient matrix be A = 5 & 6 \\ 7 & 9 . The determinant of A is (A) = (5 × 9) - (6 × 7) = 45 - 42 = 3. The inverse of