Homework Help Thread

[Munchkin]

I remembered this from the old forum because I'm doing Algebra summer homework right now =P

Problem# 38) Remove parenthases by applying the Distributive Property. 20x(3-2x)

So far, I have that 20x*3=60x, but I can't figure out what 20x*2x is.

 

[Zhorken]

20 * x * 2 * x == 20 * 2 * x * x == 40 * x ^ 2

 

[Munchkin]

What happened to the 3?
Thanks though, I have to finish this homework by August 1.

 

[Storm Earth and Fire]

The bit you had with 20x*3 correct, it would be 60x. So your answer would be 60x-40x^2.

 

[Munchkin]

All right, thanks! *scribbles on algebra sheet*

 

[Munchkin]

Double posting and bumping is bad, I know...but I last posted, like, just over a week ago. And I have another problem I need help with.

18.3y - 7.6 = 8.4y - 14.6

That's all it said on the sheet, no instructions. Just that. So I'm guessing I have to have it solved entirely.

 

[Featherfur]

I think your supposed to figure out what y equals. Your going to be in 7th grade, right?

 

[*~[insert name here]~*]

18.3y - 7.6 = 8.4y - 14.6

OK, so you want to start by doing something like:

18.3y - 7.6 = 8.4y - 14.6
+7.6 = =7.6

and get

18.3y = 8.4y - 7

Then, you calculate:

18.3y = 8.4y - 7
+7 = +7

and get

11.3y = 8.4y

next, subtract

8.4 from 11.3
(because y's cancel each other out.)

and that will be your answer.

 

[Munchkin]

No, I'm going to be a freshman in high school.

Thanks! =D

 

[*~[insert name here]~*]

O-o.

I'm gonna be in eighth.
Now I feel young....

 

[Featherfur]

I'm gonna be in sixth, and I know things high schoolers know. X3

 

[Storm Earth and Fire]

O-o.

I'm gonna be in eighth.
Now I feel young....

Better than feeling old.

I'm going to be a senior in high school. D:

 

[shadow_lugia]

I'm going into seventh, and I know things my mom doesn't know

"Hey mom! Did you know that if you feed an Alka-Seltzer tablet to a seagull it'll explode because it can't fart?"
"...No."

 

[@lex]

I swear, I will never understand how the American (or anyone but the Swedish) school system works XP

 

[Aviculor]

I swear, I will never understand how the American (or anyone but the Swedish) school system works XP

what's hard to understand? we have special schools for specific groups of years (grades) and go to college after we graduate from 12th grade.

 

[Flora]

@ s_l: My sister's teacher told his class to feed tons of Alka-Seltzer tablets to the seagulls so they'll explode.

:D

 

[Dannichu]

Better than feeling old.

I'm going to be a senior in high school. D:

Hurr, I've finished school completely and wouldn't have the first clue about solving those equations. :D

See? I exist to make people feel better about themselves~
(Schadenfreude, anyone?)

 

[Mirry]

OK, so you want to start by doing something like:

18.3y - 7.6 = 8.4y - 14.6
+7.6 = =7.6

and get

18.3y = 8.4y - 7

Then, you calculate:

18.3y = 8.4y - 7
+7 = +7

and get

11.3y = 8.4y

next, subtract

8.4 from 11.3
(because y's cancel each other out.)

and that will be your answer.

I have no idea what on earth you did, but this is how you actually solve this equation. o.o I dunno why you think the y's would cancel out at the end... if they did, how would you figure out what y equals?

18.3y - 7.6 = 8.4y - 14.6
-8.4y from both sides...
9.9y - 7.6 = -14.6
+7.6 to both sides...
9.9y = -7
Divide both sides by 9.9...
y = -.707 (I rounded)

 

[turbler]

I know this thread died eons ago but I need the help for my french due tomorrow(Wed Oct 1 2008) it's a crossword with picture clues
2 across is all that's left. It's a 3 ring binder and from doing other words connecting to it I have: _ (_) _ t _ _ (_) e. Anyone?:sweatdrop:
EDIT: There's also a mystery phrase made up of the letters: B N A S A L U T D E as well as the dashes in brackets from 2 across.
They are arranged like so:_ _ _ _ _, _ _ _ _ _ _ _! I think the word salut is one of them, it means hello. If I'm right that leaves SALUTBNADE _ _
The two letter could be DE leaving BNADE_ _. I could probably get it if I could get 2 across... any ideas?

 

[CNiall]

I know this thread died eons ago but I need the help for my french due tomorrow(Wed Oct 1 2008) it's a crossword with picture clues
2 across is all that's left. It's a 3 ring binder and from doing other words connecting to it I have: _ (_) _ t _ _ (_) e. Anyone?:sweatdrop:
EDIT: There's also a mystery phrase made up of the letters: B N A S A L U T D E as well as the dashes in brackets from 2 across.
They are arranged like so:_ _ _ _ _, _ _ _ _ _ _ _! I think the word salut is one of them, it means hello. If I'm right that leaves SALUTBNADE _ _
The two letter could be DE leaving BNADE_ _. I could probably get it if I could get 2 across... any ideas?

The binder could be cartable; no idea off the top of my head about the anagram (but try double spacing once in a while).