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Wacky Macky
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PostPosted: September 26, 2007 7:26 pm    Post subject: Help With Homework? Reply with quote
I got this really confusing problem which wouldn't be hard except for the fact that I have to make it into an equation instead of solving it. Help? Here's the problem:

Terri has 1/4 as many Canadian stamps as her father has in his collection. She has 1/7 as many Canadian stamps as her grandfather has. How many stamps do each have if together they have 120 Canadian stamps?

I got 120 = s1/4 + s1/7 + s

But I really don't think it's right.

Help!!!
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Wacky Macky
Charms Professor
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PostPosted: September 26, 2007 7:36 pm    Post subject: Reply with quote
nevermind.
my answer was right, i checked with my friend lol.
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Sunne
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PostPosted: September 26, 2007 7:38 pm    Post subject: Reply with quote
Good, I'm glad b/c I looked at it and my brain stalled...I'm sure I could have figured it out any other day though...
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Wacky Macky
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PostPosted: September 26, 2007 7:38 pm    Post subject: Reply with quote
lol.
i actually got it on the first try.
i just thought it was wrong because i hate problems like that.
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Sunne
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PostPosted: September 26, 2007 7:39 pm    Post subject: Reply with quote
They're really confusing...and no matter what your teacher says, you don't use problems like that in the real world...
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Wacky Macky
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PostPosted: September 26, 2007 7:40 pm    Post subject: Reply with quote
haha, i know i won't.
i could've solved the problem easily, it's just making them into equations that bugs the heck outta me.
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teacakes
Mrs. Sirius Black
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Joined: Aug 23, 2007
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PostPosted: September 26, 2007 7:48 pm    Post subject: Reply with quote
Isn't it s + 4s + 7s = 120? Or 12s = 120

(Solving to check)
Spoiler:

Terri's stamps(s)
Father's stamps(f)
G/father's stamps(g)

12s = 120
s = 10

f = 4(10)
f = 40

g = 7(10)
g = 70

s + g + f = 120
10 + 40 + 70 = 120
120 = 120


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Wacky Macky
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PostPosted: September 26, 2007 7:49 pm    Post subject: Reply with quote
no, because it's not 4 and 7, but 1/4 and 1/7. like fractions.
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teacakes
Mrs. Sirius Black
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PostPosted: September 26, 2007 7:52 pm    Post subject: Reply with quote
Terri has a quarter of her fathers amount so her fathers amount is four times hers, understand? Try and solve your equation, I don't think it would work, but then again I haven't done algebra in like nearly two years. I miss it so much.
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Wacky Macky
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PostPosted: September 26, 2007 7:53 pm    Post subject: Reply with quote
lol.
okay you're just confusing me.
i think i'll leave my answer and if it's wrong, oh well.
haha.
my teacher knows i suck at this anyway.
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teacakes
Mrs. Sirius Black
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PostPosted: September 26, 2007 7:57 pm    Post subject: Reply with quote
Nooo I love teaching math, let me try and explain.

By my math, Terri has 10 stamps, her father has 40.
So, her father has four times the stamps then she has, yes? (4 x 10 = 40)
And, "Terri has 1/4 as many Canadian stamps as her father" (10 = ¼ of 40)

Understand?
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Wacky Macky
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PostPosted: September 26, 2007 7:58 pm    Post subject: Reply with quote
uhhh... actually yes.
wow, i thought i'd be confused.
thanks Very Happy
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teacakes
Mrs. Sirius Black
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PostPosted: September 26, 2007 8:01 pm    Post subject: Reply with quote
So do you understand why my equation is right? If not I'll explain more, these things are really easy when you get the understanding behind 'em.
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Wacky Macky
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PostPosted: September 26, 2007 8:01 pm    Post subject: Reply with quote
yeah, i got it.
thanks Very Happy
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teacakes
Mrs. Sirius Black
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PostPosted: September 26, 2007 8:02 pm    Post subject: Reply with quote
Your welcome.
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Fiendfyre
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PostPosted: September 26, 2007 9:51 pm    Post subject: Reply with quote
what would you do without your friends on PF to help you with homework? Smile
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Kar
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PostPosted: September 26, 2007 9:53 pm    Post subject: Reply with quote
Go find other friends? lol
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teacakes
Mrs. Sirius Black
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PostPosted: September 27, 2007 10:37 pm    Post subject: Reply with quote
When do you find out what the answer is? Lol I wanna know if I was wrong and I've forgotten even basic algebra in the few years since I've done it.
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GinnyX
Mrs. George Weasley
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PostPosted: October 7, 2007 4:36 am    Post subject: Reply with quote
Are we still waiting for the correct answer? Even I'm curious to know!
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teacakes
Mrs. Sirius Black
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PostPosted: October 17, 2007 5:12 am    Post subject: Reply with quote
Still no answer? Lol dammit I wanna know still.
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DarMonkey
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PostPosted: October 17, 2007 8:38 am    Post subject: Reply with quote
teacakes is correct.
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teacakes
Mrs. Sirius Black
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PostPosted: October 17, 2007 8:44 am    Post subject: Reply with quote
Goodie!
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AngelPotter20
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PostPosted: April 2, 2008 10:39 pm    Post subject: Reply with quote
This is the only thread that I found that I could use.. lol so I need help with a Algebra question.. It's probably like the easiest thing ever but I suck at Math.. anyway here is the question...

x 1
-- + --
y x
_____

y 1
-- + --
x x

anyone have any ideas?
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treehugger14
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PostPosted: April 2, 2008 10:43 pm    Post subject: Reply with quote
i'm not sure what you're supposed to do. Confused

are they supposed to be fractions or something?
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zengrenouille
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PostPosted: April 2, 2008 10:46 pm    Post subject: Reply with quote
AngelPotter20 wrote:
This is the only thread that I found that I could use.. lol so I need help with a Algebra question.. It's probably like the easiest thing ever but I suck at Math.. anyway here is the question...

x 1
-- + --
y x
_____

y 1
-- + --
x x

anyone have any ideas?


I'm a little confused by the format of this equation. Is it:

(x/y + 1/x) / (y/x + 1/x)
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