Date: Mon Oct 28 16:57:22 PST 2002
Student's Name: Richard
Answer(or question to Mentor): I am not getting the first part of the problem but the second part is hazy but i am stuck on 5/12 was still dry but i can not convert it into feet and inches
Date: Mon Nov 4 16:48:06 PST 2002
Student's Name: Richard
Answer(or question to Mentor): I think the answer to part b is 3 feet are dry since 9/12 should equal twelve feet if the 12 is 15 feet and the 9 is how many feet are dry. If you add 3 plus 12 you 15 which is how high the stilts are and in the problem 1/3 was dry so it would equal to 5/15 and 9 plus 3 gets twelve feet wet. But the question for part b says how many feet are dry so you subtract how high the stilts(15ft) and how wet it got(12ft) to get the answer 3 feet were dry in the storm surge of 2002.
Date: Mon Nov 4 16:57:49 PST 2002
Student's Name: Richard
Answer(or question to Mentor): I thought it over and I got 2.75 feet were dry because if you divide 15 by 4 you would get 3.75. I divided because the problem sayed 1/4 was in the ground. That means 3.75 feet were underground. Then you subtract 15 from 3.75 to get 11.25 feet of the stilt was above ground. Then 3/4 is 2.75. I am sorry I can not explain how I got the last part because I blanked out but I will try to remember how i did the math.
Date: Mon Nov 4 17:03:39 PST 2002
Student's Name: Richard
Answer(or question to Mentor): I think the answer to part a is 12.25 feet because 3/4 of the stilt is wet gets 11.25 but waves have to bounce. So I subtracted 15 from 2.75 which is how much was dry.
Date: Mon Nov 4 22:01:02 PST 2002
Student's Name: Richard
Instructor Comments: Hi Richard,
Thanks for really thinking about this problem! You are on the right track, but your answers are still incorrect. You say that 3/4 of the stilt gets wet, but the problem states that 1/4 of the stilt is stuck underground. So, you are correct that 3/4 is above ground, but that is not necessarily how much got wet.
Now, according to the problem, the storm surge in 2000 covered 1/3 of the pole that was above ground, and 5 feet were left dry. So, the first question is, what fraction of the part of the pole above ground was left dry? Now, if that represents 5 feet, then how much does 1/3 represent? Once you know this, you can figure out the length of the pole that is above ground. This will help you find the answer for the height of the 2002 storm surge. Hope this helps.
Dr. Bowers
Date: Tue Nov 5 09:20:56 PST 2002
Student's Name: Richard
Mentor Reply:
Hi Richard,
Thanks for really thinking about this problem! You are on the right track, but your answers are still incorrect. You say that 3/4 of the stilt gets wet, but the problem states that 1/4 of the stilt is stuck underground. So, you are correct that 3/4 is above ground, but that is not necessarily how much got wet.
Now, according to the problem, the storm surge in 2000 covered 1/3 of the pole that was above ground, and 5 feet were left dry. So, the first question is, what fraction of the part of the pole above ground was left dry? Now, if that represents 5 feet, then how much does 1/3 represent? Once you know this, you can figure out the length of the pole that is above ground. This will help you find the answer for the height of the 2002 storm surge. Hope this helps.
Cam
Date: Tue Nov 12 16:58:03 PST 2002
Student's Name: Richard
Answer(or question to Mentor): The answer to question 1 is the cheeseburger has 330 calories in it. I multiplied 14 and 9 to get 126 calories because the cheeseburger has 14 grams of fat and there are 9 calories in each gram of fat. Next I multiplied 36 and 4 to get 144 calories because there are 4 calories in each gram of carbohydrates. Then I multiplied 15 and 4 to get 60 calories because there are 4 calories for every gram of protein. Finally I added 126, 144, and 60 to get 330 calories.
The answer to question 2 is 10.3125 % because if you divide 2000and 2 you would get 1000. Next I divided 330 and 2 to get 165. Then I divided 1000 and 2 to get 500. Next I divided 165 and 2 to get 82.5. Next I divided 500 and 2 to get 250. Then I divided 82.5 and 2 to get 41.25. Then I divided 250 and 2 to get 125. Next I divided 41.25 and 2 to get 20.625. Then I divided 125 and 2 to get 62.5. Next I divided 20.625 and 2 to get 10.3125.
The answer to question 3 is 26% of the cheeseburger is fat because if you multiply 126 and 2.6 you would get 327.6. Then I moved the decimal point over one space to get 26%.
Date: Fri Nov 15 15:16:23 PST 2002
Student's Name: Richard
Mentor Reply: Hello Richard!
Thank you for submitting your solution. There are only 2 questions to the original problem. Your answers to question 1 and 2 are really the answer to quesiton 1 of the original problem. Your answer to question 3 is the answer to question 2 of the original problem. I just wanted to make it clear so both of us know what questions of the problem we are referring to.
Your answer to question 1 of the original problem is incorrect. However, you have part of it right. Yes, you are right that the cheeseburger contains 330 calories (your explanation is excellent), but your final answer of 10.3125% is incorrect. Can you explain why you kept taking 2000/2 and 330/2?
Question 1 of the problem asks: What fraction or percent of 330 calories in the cheeseburger is out of 2000 calories that a person is allowed to take daily? I hope this will help you out.
For question 2 of the original problem, your answer is incorrect. Can you explain why you multiply 126 to 2.6?
Question 2 of the problem asks: What fraction or percent of calories of fat is out of 330 calories in the cheeseburger? Again, I hope this will help you.
If you have any questions just ask. I look forward to reading your revision. Go ahead and try the challenge problem.
Cam
Date: Wed Nov 20 23:27:24 PST 2002
Student's Name: Richard
Instructor Comments: Cam,
Your response is mathematically correct, but the wording is awkward in some areas. Here are my suggestions:
1. I would delete the first paragraph. I think he knows that initially, there was a question asking how many calories are in a hamburger, but that was inadvertently deleted. So, I think I would just start with the second paragraph.
2. The next sentence is good in spirit, but awkward. Try this: 'Question 1 of the problem asks: What fraction or percent of the 2000 calories is 330? I hope this will help you out.'(take out the rest)
3. Next sentence should read: Can you explain why you multiply 126 BY 2.6?
4. Rewrite this sentence as follows: Question 2 of the problem asks: What fraction or percent of 330 calories is the fat calories? Again, I hope this will help you.'
Dr. Bowers
