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Deceleration's 100 math problems thread!; Absolute torture...
Topic Started: Aug 4 2011, 04:22 AM (5,628 Views)
Deceleration
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Coreling Conquerer

So for my 100th birthday (not really, but I'll never reveal my true age) I decided to make 100 math problems to post here! So you guys can do it.

Why am I doing this? For fun. Why should you waste time with these? Well, whoever gets the most problems right gets a cookie! Also, they get their very own rank bar of whatever design they want.

So, I'll post one or two a day. Once the problem is completed correctly, no one else can claim it.

Wait, why 100? How about I choose a random number instead? I know- 79, the next number in my Count to Infinity thread. Excellent.

Here's the scoreboard:
SCOREBOARD!
 
Questions left: 61
Questions completed correctly: 17
Questions posted but not yet completed: 0
Questions no one has bothered to answer: 1

Participants:
Spar: 8
SergeantRick: 7
Camo5: 1
ion496: 1
DWD: 0
EnergyOrb: 0


Now, for the starting question: How about Algebra?

If X2-X=12 and Y2-Y=12, then what is the greatest value of X - Y???

And yes, I figured out the answer to that one. In about five minutes, without scratch paper. It's easy. Mental math.
Edited by Deceleration, Oct 8 2011, 09:33 PM.
 
EnergyOrb
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Newborn
i want to participate. thinking of answer......
 
DarkWingedDaemon
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Coreling Cruiser

X=4 and Y=4
X-Y=0
 
EnergyOrb
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Newborn
sorry for double post, but my guess is 0. also, can i post questions too? EDIT: *MANIACAL LAUGHTER* dwd, he asked for x-y not what is x what is y. :gun: :P
Edited by EnergyOrb, Aug 4 2011, 05:32 AM.
 
Spar
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Wandering Scavenger

He might not have asked what X and Y were, but it's pretty easy to discover what the possible values are. After all there aren't many options for something that distinct. You can get 4 or -3 for either value, however to get the greatest possible value of X-Y then the results are X=4 and Y=-3, which results in 7. Simple enough.
 
DarkWingedDaemon
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Coreling Cruiser

That's why I don't do math while half a sleep...
 
Spar
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Wandering Scavenger

I tend to think negatively, so trick questions like that are pretty easy for me.
 
Deceleration
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Coreling Conquerer

Spar is absolutely correct! 7 is the maximum value of X - Y.

Now for number 2: maybe something simpler.

A ballistic missile traveling at 250 miles per hour is targeting a warship traveling at 30 knots (about 34.5 miles an hour). They are traveling towards each other on a straight line from 500 miles away. How far does the warship travel before it's destroyed?
 
DarkWingedDaemon
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Coreling Cruiser

Roughly 69 miles or 60 knots but, that can vary if the ship goes off coarse to avoid a reef.
 
Deceleration
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Coreling Conquerer

Sorry, you're close, but not right (Also, knots is a measure of speed, not distance). And I specified that they were traveling in a straight line.
 
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