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| Deceleration's 100 math problems thread!; Absolute torture... | |
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| Tweet Topic Started: Aug 4 2011, 04:22 AM (5,628 Views) | |
| Deceleration | Aug 4 2011, 04:22 AM Post #1 |
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Coreling Conquerer
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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:
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.
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| EnergyOrb | Aug 4 2011, 05:27 AM Post #2 |
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Newborn
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i want to participate. thinking of answer...... |
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| DarkWingedDaemon | Aug 4 2011, 05:29 AM Post #3 |
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Coreling Cruiser
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X=4 and Y=4 X-Y=0 |
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| EnergyOrb | Aug 4 2011, 05:31 AM Post #4 |
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Newborn
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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.
Edited by EnergyOrb, Aug 4 2011, 05:32 AM.
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| Spar | Aug 4 2011, 06:31 AM Post #5 |
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Wandering Scavenger
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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. |
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| DarkWingedDaemon | Aug 4 2011, 05:00 PM Post #6 |
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Coreling Cruiser
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That's why I don't do math while half a sleep... |
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| Spar | Aug 4 2011, 06:39 PM Post #7 |
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Wandering Scavenger
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I tend to think negatively, so trick questions like that are pretty easy for me. |
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| Deceleration | Aug 4 2011, 09:25 PM Post #8 |
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Coreling Conquerer
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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? |
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| DarkWingedDaemon | Aug 4 2011, 10:19 PM Post #9 |
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Coreling Cruiser
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Roughly 69 miles or 60 knots but, that can vary if the ship goes off coarse to avoid a reef. |
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| Deceleration | Aug 4 2011, 10:27 PM Post #10 |
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Coreling Conquerer
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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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