Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#4576 Re: Dark Discussions at Cafe Infinity » Dont bother visiting because it's really boring in here » 2005-06-22 03:10:07

Infinity squared is infinity, so it follows that the square root of infinity is also infinity. Probably.

#4577 Re: Puzzles and Games » Two, just for you. » 2005-06-22 02:57:28

These questions are much harder than each other.

#4578 Re: Help Me ! » 2 Things need help!! » 2005-06-22 02:56:17

2) If Kyle put the whole of it into the 3% account, then she would get 20,000x3%=$600.
For however much she puts into the 5% account, she gets 5-3=2% more.
She got $760 and she gets $600 from the low rate, so she needs $160 more.
If it was all in the high rate account, she would get 20,000x2%=$400 more, but she only wants $160. (Don't know why, though)
This means that she puts 160/400=40% of her money, or $8,000, in the high account.

To summarise, $8,000 at 5% and $12,000 at 3%.
Sorry if I've just made this more complicated with my bad explanation.

#4580 Introductions » Hi » 2005-06-22 02:42:35

mathsyperson
Replies: 3

I've been here for a while now, but I've just registered so I thought I'd post here.
OK, done that. Bye!

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