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
Step 1: Convert the mass of one lorry to kilograms. We know that 1 tonne (t) = 1000 kg. The mass of each lorry is 3t 245kg. 3t 245kg = (3 × 1000) kg + 245 kg = 3000 kg + 245 kg = 3245 kg Step 2: Calculate the total mass of 7 lorries. To find the total mass, multiply the mass of one lorry by the number of lorries. Total mass = 7 × 3245 kg = 22715 kg Step 3: Convert the total mass back to tonnes and kilograms. 22715 kg = 22000 kg + 715 kg Since 1000 kg = 1t, then 22000 kg = 22t. So, the total mass is 22t 715kg. The total mass of the lorries is 22t 715kg. 3 done, 2 left today. You're making progress.