Lizzy: Carla spends 10 minutes sharpening her knife and 3 times that amount of time peeling vegetables. How much time does she spend on these activities total?.
Me: Hmmm, let me think. I think this is the detailed solution:
First find the total time Carla spends peeling vegetables: 10 minutes * 3 = 30 minutes. Then add the time she spent sharpening her knife: 30 minutes + 10 minutes = 40 minutes. Final answer: 40.