Posted on 11/16/2009 5:57:35 PM PST by netmilsmom
Get a new math curriculum. I don't recall ever doing a problem like that with Saxon.
(It isn't Saxon, is it?)
Saxon worked for us.
I just recently ( for my own amusement) redid the problems in the Algebra I book.
First make an equation for each factual statement in the problem. Then there are two ways to solve the problem: substitution or addition of the equations followed by substitution. QED!
I meant to say Saxon Algebra I and II books.
Now that this problem has been adequately solved...here is a real math problem...
An inchworm travels along a rubberband which is infinitely elastic. The rubber band is originally 8 inches long. Every minute the inchworm travels one inch. At the end of each minute, the rubber band instantaneously stretches 8 inches, how long does it take for the inchworm to reach the end of the rubber band?
I was told there would be no math.
“Either do sobstitution or use the gauss jordan elimenation.
I am on a cell phone typing on a tiny key board so I’m not doing it for you.”
...and your cell phone is apparently not doing the spell check for you. Not to worry. I figure there are two kinds of peeps in the world; Math peeps and spelling peeps. Obviously you are an Engineer (I’ve always liked their hats and the awesome whistle).
I know that Saxon is filled with double substitution problems. It's just that the ones I remember having the kids do were much easier than that.
One of the things that Saxon taught me that I found invaluable for word problems was that when I saw the word *is* you replace it with an equal sign, and when you saw the word *of* you replace it with a multiplication sign.
That helps translate the problem from a word problem to a math equation.
So, if you had the problem of *Fifty percent of four is what* it would rewrite as *50% x 4 = ?*.
Couldn't be simpler.
Well sqrt(2) + sqrt(8) is sqrt(2) + 2sqrt(2) = 3sqrt(2), so her generalization is baseless.
A counterexample is sqrt(2) + sqrt(3) , whose square is 5 + 2sqrt(6) .
Welcome!
About the quizzes... wait until your first post someone disagrees with. Then please take the heat with a grain of salt. (Of course, it helps to put the heat on some grits and add some butter before you put the salt on.)
Again, welcome!
Actually, the best review I've gotten was a couple years ago, a homeschooling mom found a post of mine on yet a different site (my school has gone through a few) that used the Top 50 Movies of All Time (based on US box office) and asked a bunch of probability and statistics questions. First time her son hurried through an entire assignment.
The other two sites are just cartoons, mostly dealing with math, and other times are just geeky. I do that stuff to relieve stress rather than commit random acts of mayhem upon the Internet.
Why would you but an onion?
I'm sure when my IQ points are much higher, I will jump in and disagree with someone. What do you think? 6-12 months?
Your solution is the clearest one. I could understand Reply #28 using x, 2x, and x+24, but the way you present it step by step is crystal clear.
And getting rid of the confusing O variable helps a lot.
9S - 6A + = 0
2S - N = 0
A - N = 24
You can solve this by direct substitution.
should we be doing the kid’s homework?
I volunteer to write an essay for him if he wishes. But don’t send me physics. I never got that.
Nothing like humiliating myself in front of 100,000 conservatives. Can I plead that I have swine and am not thinking clearly and am posting from my sickbed?
Yours is the funniest damn math problem I ever read. I hope you submit it to the teacher at your kid’s school for inclusion.
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