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
Here's the solution for the prepaid phone charges: Step 1: Identify the given rates. Cost per minute for calls = K1 Cost per MB for data = K0.50 a) If you talk for g minutes and use mb of data, write an expression for the total cost. The cost for talking g minutes is 1 × g = g. The cost for using mb MB of data is 0.50 × mb. The total cost (C) is the sum of the call cost and the data cost. C = g + 0.50(mb) a) The expression for the total cost is g + 0.50(mb). b) What will be the total cost if you talk 30 minutes and use 200 mb of data? Substitute g = 30 and mb = 200 into the expression from part (a). C = 30 + 0.50(200) C = 30 + 100 C = 130 b) The total cost will be K130. 3 done, 2 left today. You're making progress.