For clarity, our instructor mentioned there was a slight wording issue with the questions: It's a 5% loss of average daily distance, not an additional loss of an average of 5%. For 2A I first tried 3,200 km * 0.30 * 0.05, giving me 48. I got the 3,200 km by adding 2,550 km and 650 km, but I guess that wasn't correct and the 3,200 km is only for 2B according to a classmate, though the wording is a bit confusing, I guess. (We have a forum to ask questions on.) So now this classmate and I are doing 90 * 0.30, which is 27 and then subtracting 27 from 90, giving us 63, and then multiplying that by 0.05, giving us 3.15, which I THINK is the answer to 2A: 3.15 km per day, but I don't know. However, there's a number my classmate wrote down that she doesn't know how to get. She just saw that another classmate from our group had it on her paper and wrote it down to use later, but never got the chance to ask her how she got that number. The number in question is 59.85. So for 2B, we think it's 3,200 km / 59.85, giving us 53.47 and then 53.47 * 0.30 * 0.05 equals 0.80, but again, we don't know where the 59.85 is coming from, and I don't know where the 53.47 and 0.80 go, if it's even being done right in the first place. The other girl in our group told her she did something with the 3.15 to get 59.85. So I'm confused and she's confused. My mom is trying to help me, but is also a standstill. Any help from people here? Edit: So apparently 59.85 is the answer to 2A: 59.85 km per day.
If you're still wanting the help... 2A. You know what you're doing really. You missed one step calculating the loss from the battery that you did use in the loss from terrain. 2B. This one has some weird wording about the terrain. It's not clear if the 30% applies only to the section with rough terrain, or if that is an average for the entire trip. Plus, the copy paste job ends up repeating 2A's question on accident. At any rate it says "reduces his average daily travel distance for the trip by 30%" so it should be the entire 3200 km instead of the last 2250 km. So you have the total distance of 3200 km and from 2A you have 59.85 km/day. Let's compare it to an easier problem. If I run at an average pace of 5 miles/hr, and I'm going somewhere 10 miles away, how long will it take me to reach there? 2 hours. Why? Unit conversion. 10 miles * 1 hr / 5 miles. Miles cancel out 10 *1 hr / 5 10 hr / 5 2 hr
Thanks, Mixt. I did figure it out as it was due the next day and had a classmate help me. Answers were 60 km per day and 53 days for 2A and 2B, both rounded.
