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You are not logged in. #1 20121226 23:01:53
Mixing Word Problems & Distance Word ProblemsHi guys, I was just wondering if I got these correct. The ones that have the answers in bold letter is the one I need help with (ones I haven't answered correctly). "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #2 20121226 23:03:00
Re: Mixing Word Problems & Distance Word ProblemsFor #1, the first thing you see is a supposed table. I need help creating a table for number 2. For number 5 I am not too sure how to do, the rest I'm just wondering if I did them correctly. "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #3 20121226 23:13:03
Re: Mixing Word Problems & Distance Word ProblemsHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20121226 23:37:37
Re: Mixing Word Problems & Distance Word Problems
Let b be the velocity of the boat in still water and c be the speed of the current. Then you have Solve the two simultaneous equations for b.
As above you must set up two simultaneous equations and solve them. Let d be the velocity of the duck in still air and w the speed of the wind. The first equation is I leave you to derive the second equation and solve the them for w. Last edited by scientia (20121226 23:40:18) #5 20121226 23:53:33
Re: Mixing Word Problems & Distance Word Problemshi demha You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #6 20121227 01:30:03
Re: Mixing Word Problems & Distance Word ProblemsHi Bobby: Last edited by demha (20121227 01:30:44) "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #7 20121227 02:09:19
Re: Mixing Word Problems & Distance Word Problemshi demha; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #8 20121227 02:49:59
Re: Mixing Word Problems & Distance Word Problemshi
Do you mean this one: multiply by 100 to remove the decimals
In a word problem, I was taught to find out what I must calculate and call that x. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #9 20121227 03:47:15
Re: Mixing Word Problems & Distance Word ProblemsHi Bob: "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #10 20121227 04:58:56
Re: Mixing Word Problems & Distance Word Problemshi demha You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #11 20121227 16:34:44
Re: Mixing Word Problems & Distance Word ProblemsSeed Weight Blue Grass Weight Other Seed "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #12 20121227 17:26:41
Re: Mixing Word Problems & Distance Word Problems
What are you not too sure of? The two problems are similar, and I did almost all of question 4 for you. Just apply the concept speed = distance / time. #13 20121227 19:01:09
Re: Mixing Word Problems & Distance Word ProblemsHi Scientine: Last edited by demha (20121227 19:06:45) "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #14 20121227 19:52:16
Re: Mixing Word Problems & Distance Word Problemshi demha The answer will be in metres per minute. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #15 20121227 20:30:49
Re: Mixing Word Problems & Distance Word Problems
Yes, you need to solve for b because the question is asking for the boat's speed in still water: in other words, what boat's speed would be if there were no current at all. The question isn't asking for the speed of the current (so your answer was not correct). #16 20121227 20:44:35
Re: Mixing Word Problems & Distance Word ProblemsHi Bob: "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #17 20121227 20:52:51
Re: Mixing Word Problems & Distance Word Problems5 = 60/(x  4) "The thing about quotes on the Internet is you cannot confirm their validity" ~Abraham Lincoln #21 20121231 14:05:09
Re: Mixing Word Problems & Distance Word ProblemsHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 