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Tech support and questions about AoPS classes and materials
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Site Support Tech support and questions about AoPS classes and materials
Tech support and questions about AoPS classes and materials
3 M G
BBookmark  VNew Topic kLocked
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First Poster
Last Poster
Calculator
junlongsun   18
N 2 hours ago by fruitmonster97
I have a Casio FX-9750GIII

I can't seem to get the equation solver to work, I'm mainly afraid of something similar to Chapter T8 appearing on states.

$y^2=1025-40x$
$x^2=1025-50y$

Does anyone with the model know how to get the calculator to solve the equation above?

Thanks
18 replies
junlongsun
Today at 2:37 AM
fruitmonster97
2 hours ago
ohio mathcounts state
Owinner   11
N 2 hours ago by bjump
what is the cutoff for cdr for ohio? Is ohio a competitve state?
11 replies
Owinner
Tuesday at 10:52 PM
bjump
2 hours ago
Camp Conway acceptance
fossasor   10
N 2 hours ago by jb2015007
Hello! I've just been accepted into Camp Conway, but I'm not sure how popular this camp actually is, given that it's new. Has anyone else applied/has been accepted/is going? (I'm trying to figure out to what degree this acceptance was just lack of qualified applicants, so I can better predict my chances of getting into my preferred math camp.)
10 replies
fossasor
Feb 20, 2025
jb2015007
2 hours ago
AMC 8 scores
megahertz13   8
N 2 hours ago by HenryJW
$\begin{tabular}{c|c|c|c|c|c|c|c|c}Username & Grade & AMC 8 \\ \hline
megahertz13 & 3 & 15 \
\end{tabular}$
8 replies
megahertz13
Apr 27, 2022
HenryJW
2 hours ago
9 AMC 8 Scores
ChromeRaptor777   87
N 2 hours ago by Yolandayu
As far as I'm certain, I think all AMC8 scores are already out. Vote above.
87 replies
ChromeRaptor777
Apr 1, 2022
Yolandayu
2 hours ago
Mathcounts 2012
junlongsun   7
N 3 hours ago by mpcnotnpc
Source 2012 S29:

For how many two-element subsets {a, b} of the set {1, 2, 3, . . . , 36} is the product ab a perfect square?

Does anyone have a quick solution?
7 replies
junlongsun
Today at 2:07 AM
mpcnotnpc
3 hours ago
AMC8 Honor Roll out??
LittleBacat   77
N Today at 11:33 AM by GYRAD0S
I searched up the honor roll number today for Amc8 2025, and it says that (in the AoPS WIKI), https://artofproblemsolving.com/wiki/index.php/AMC_historical_results?srsltid=AfmBOoopyoLrmVTtrMLZRTlATAWrzQzjFDBrN-rg_zhAloy8H5YkhjHb)
-Honor Roll: 19
-Average: 11.74
-Top 2.5: 21
-Distinguished Honor Roll: 23.
I think this is correct! So like idk what did y'all get?
77 replies
LittleBacat
Feb 25, 2025
GYRAD0S
Today at 11:33 AM
PLS help me come up with a faster solution to this problem!
ilikemath247365   7
N Today at 4:41 AM by jkim0656
2023 National Sprint Problem 30

Let $M = \frac{9^{40,000}}{9^{200} - 2}$. If $M$ is rounded to the nearest integer and then divided by $100$, what is the remainder?
7 replies
ilikemath247365
Today at 4:18 AM
jkim0656
Today at 4:41 AM
AOPS course questions
GlitchyBoy   5
N Today at 4:11 AM by aoh11
Hi Aops,
I was wondering if an intro to algebra book from Aops is needed to take the intro to algebra b course
And would it be better to buy the book and just do it myself or take a course on AOPS for intro to algebra b?
I am aiming for aime and nats next year so what should I do?
is intro to algebra b, intro to c&p, and amc10 course enough or not?
and do intro to algebra b and intro to c&p help with mathcounts and AMC?
thank you!
5 replies
GlitchyBoy
Yesterday at 8:45 PM
aoh11
Today at 4:11 AM
which course should I take
GlitchyBoy   14
N Today at 4:05 AM by Leeoz
Hello AOPS community,
Should I take the Mathcounts/AMC8 Advanced course over the summer or the AMC 10 Intermediate course?
I'm a 7th grader who is aiming for DHR AMC 8 and AIME qual next year as well as nats mathcounts, but sillies a lot on some stuff.
Scores:
6th grade (2023-2024 year)
Mathcounts Chapter: 33 (21/12)
Mathcounts State: 19 (11/8)
AMC 8: 12 (idk how this happened)
didn't take AMC 10
7th grade (2024-2025 year, so right now)
Mathcounts Chapter: 28 (36 w/o sillies)
Mathcounts State: a score higher than my chapter score (I cant reveal exact until April)
AMC 8: 16 (the problems were randomized cuz online)
AMC 10A: 42 (guessed too much)
AMC 10B: 58.5 (:facepalm:)
In practice AMC 8's I consistently get around 20-22, and on mock AMC 10's I get around 9-12 problems correct (so about low-mid 80s). In mock state Mathcounts I get 26-28s. Several people in my state have said I have a free nats qual next year due to all the competition graduating, but I am aiming for 34+ on state next year for insurance and to see how far I can go. I also hope to get DHR AMC 8 in 2026 and AIME, but not sure whether to take the AMC 8 advanced or AMC 10 course. Should I retake AMC 8 advanced (i took it last summer) to get really good basics or take AMC 10 course, and will the AMC 10 course help me get DHR amc8?
Thank you for your help, its greatly appreciated
please respond I'm begging.
14 replies
GlitchyBoy
Mar 10, 2025
Leeoz
Today at 4:05 AM
a