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 are the solutions to the questions: 1.3.1 Step 1: Identify the total number of brownies Miss Nolan wants to bake. Miss Nolan wants to bake 80 brownies. Step 2: Identify the number of brownies per batch. From the "NOTE" section, 1 batch = 16 brownies. Step 3: Calculate the number of batches needed. Number of batches = Total browniesBrownies per batch Number of batches = (80)/(16) Number of batches = 5 Miss Nolan needs to bake 5 batches. 1.3.2 Step 1: Identify the desired finish time for baking. The baking must be finished at 16:45. Step 2: Identify the preparation time and baking time for one batch. Preparation time = 15 minutes Baking time = 35 minutes Step 3: Calculate the total time required for the first batch (preparation + baking). Total time for first batch = Preparation time + Baking time Total time for first batch = 15 minutes + 35 minutes Total time for first batch = 50 minutes Step 4: Calculate the start time for preparing the first batch. Start time = Finish time - Total time for first batch Start time = 16:45 - 50 minutes To subtract 50 minutes from 16:45: 16 hours 45 minutes - 50 minutes Since 45 < 50, borrow 1 hour (60 minutes) from 16 hours. 15 hours (60 + 45) minutes - 50 minutes 15 hours 105 minutes - 50 minutes 15 hours 55 minutes The start time is 15:55 . 1.3.3 Step 1: Identify the baking temperature in Fahrenheit. The baking temperature is 330^ F. Step 2: Use the given formula to convert Fahrenheit to Celsius. The formula is ^ C = (^ F - 32) ÷ 1,8. Substitute ^ F = 330: ^ C = (330 - 32) ÷ 1,8 Step 3: Perform the calculation. ^ C = 298 ÷ 1,8 ^ C ≈ 165.555... Step 4: Round the answer to the nearest 10 degrees Celsius. 165.555... is between 160 and 170. Since 165.555... is closer to 170 than to 160, we round up. ^ C ≈ 170^ C The baking temperature in Celsius, rounded to the nearest 10 degrees, is 170^ C. That's 2 down. 3 left today — send the next one.