GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:11:59 GMT -5
69 is 81% of 85, correct? :-)~
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Deleted
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Post by Deleted on Mar 3, 2016 12:13:47 GMT -5
Is this a trick math question?
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ArchietheDragon
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Post by ArchietheDragon on Mar 3, 2016 12:14:11 GMT -5
no
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:18:53 GMT -5
Then, what's the correct answer smarty pants?
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ArchietheDragon
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Post by ArchietheDragon on Mar 3, 2016 12:19:14 GMT -5
Then, what's the correct answer smarty pants? 68.85
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:19:46 GMT -5
Is this a trick math question? LOL, no. It's "use it or lose it" and I've clearly lost it.
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:21:11 GMT -5
Then, what's the correct answer smarty pants? 68.85 K. Now convert it to a scale of 100.
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Chocolate Lover
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Post by Chocolate Lover on Mar 3, 2016 12:23:05 GMT -5
My algebra teacher beat the formula to solve that into my head: Is/of = %/100 I get 81.18 ETA: Do I have to show my work?
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:24:03 GMT -5
My algebra teacher beat the formula to solve that into my head: Is/of = %/100 I get 81.18 Thank you!!! I still got it after all!!!!
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ArchietheDragon
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Post by ArchietheDragon on Mar 3, 2016 12:24:21 GMT -5
K. Now convert it to a scale of 100. On a scale of 100 where 100 is the best I give it a 99
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:26:06 GMT -5
K. Now convert it to a scale of 100. On a scale of 100 where 100 is the best I give it a 99 Maybe accounting isn't your calling...
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ArchietheDragon
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Post by ArchietheDragon on Mar 3, 2016 12:27:24 GMT -5
On a scale of 100 where 100 is the best I give it a 99 Maybe accounting isn't your calling... I wish that were true
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ken a.k.a OMK
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Post by ken a.k.a OMK on Mar 3, 2016 12:38:29 GMT -5
What does accounting have to do with math?
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ken a.k.a OMK
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Post by ken a.k.a OMK on Mar 3, 2016 12:55:24 GMT -5
Math is a science. Accounting is manipulating figures.
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ArchietheDragon
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Post by ArchietheDragon on Mar 3, 2016 12:58:03 GMT -5
Math is a science. Accounting is manipulating figures. I can move numbers around a piece of paper with the best of 'em.
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 12:59:14 GMT -5
What does accounting have to do with math? Well, granted, Accounting math is not nearly as highbrow as Engineering math, but sometimes Accountants do use Math to calculate things such as what percentage of total inventory a certain product holds (as my problem above could certainly demonstrate).
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 13:00:18 GMT -5
Or, maybe that's what Engineers do. ;-)
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kittensaver
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Post by kittensaver on Mar 3, 2016 13:05:22 GMT -5
Okay - so maybe I'M the dumb one here
85 x 81% = 68.85. If you round up, 69.
Check: 69 / 85 = .8 or 80% (assume it may be 81%; doing this from my phone calculator so I don't have extra decimal places)
So where does the 81.18 come from? Unless you mean it's the percent, not the number??
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GRG a/k/a goldenrulegirl
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Post by GRG a/k/a goldenrulegirl on Mar 3, 2016 13:34:06 GMT -5
My calculator says 69 divided by 85 = 81.1764. So, it's a rounding issue. (?)
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Chocolate Lover
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Post by Chocolate Lover on Mar 3, 2016 14:20:48 GMT -5
Okay - so maybe I'M the dumb one here
85 x 81% = 68.85. If you round up, 69.
Check: 69 / 85 = .8 or 80% (assume it may be 81%; doing this from my phone calculator so I don't have extra decimal places)
So where does the 81.18 come from? Unless you mean it's the percent, not the number??
To show my work.... 69/85 = x/100 cross multiply 6900 = 85x divide to get rid of the 85 makes it 81.18 ETA: or you cut out the middle man like GRG did.
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NastyWoman
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Post by NastyWoman on Mar 3, 2016 15:15:02 GMT -5
Math is a science. Accounting is manipulating figures. I can move numbers around a piece of paper with the best of 'em. Neanderthal --- at least use a spreadsheet
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ken a.k.a OMK
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Post by ken a.k.a OMK on Mar 3, 2016 16:28:45 GMT -5
I remember when my business major frat brothers had business calc I and told us engineers how easy calc was. All they learned was how to calculate the area under a curve. I guess for some business type analysis. Of course I had economics I and II and only learned the rule of supply and demand and diminishing returns. I did learn a name (author of our book) John Kenneth Galbraith. I liked his middle name. Geez I can remember that 46 years later.
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Abby Normal
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Post by Abby Normal on Mar 3, 2016 17:30:32 GMT -5
How you calculate it depends on what your knowns are: If you have 85 items and you know that 81% are item type X then the math is 85*.81=68.85 (rounded to 69) 69 of type X If you have 85 items and 69 are type X then 69/85= .81 or 81%. Rounded or out to 4 digits is 81.1764 hence 81.18. So all ya'll are kinda right.
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Abby Normal
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Post by Abby Normal on Mar 3, 2016 17:31:38 GMT -5
Math is a science. Accounting is manipulating figures. I can move numbers around a piece of paper with the best of 'em. Accounting- the art of covering your assets.
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sesfw
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Post by sesfw on Mar 3, 2016 17:49:16 GMT -5
85 x .81 = 68.85
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TheHaitian
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Post by TheHaitian on Mar 3, 2016 17:50:58 GMT -5
81% Or 81.2% Or 81.1764706%
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Phoenix84
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Post by Phoenix84 on Mar 4, 2016 0:57:03 GMT -5
69/81 = 0.812 (rounded up to three significant figures)
Which correlates to 81.2%
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Virgil Showlion
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Post by Virgil Showlion on Mar 4, 2016 9:01:55 GMT -5
Let's look at the problem in detail. We want to know what percentage of 85 is constituted by 69. Hence we compute: 85 - 69 ----
The first step is subtracting the rightmost digits. But we can't subtract 9 from 5 since that requires calculus. Instead, we can use the number trick we learned in high school: we can double a digit by halving the digit to its left. Hence: 4(10) - 6 9 ------- 1
Now we need to compute the leftmost digit. But again, subtracting 6 from 4 is a no-go. Furthermore, we can't use our number trick because there's no digit further left. Ordinarily we would conclude that the percentage isn't defined (i.e. doesn't exist for this problem), but we notice that since the rightmost "digit" is greater than or equal to 10, we can borrow back 10 from it. Thus we get: (14) 0 - 6 9 -------- 8 1
Hence the answer is 81% exactly. As always, we verify: 6 9 - 8 1 ----- We reverse the digits on the top because 81 is a percentage: 9 6 - 8 1 ----- 1 5
Hence 15 is the residue. We add this back to our mantissa, which is 69: 1 5 + 6 9 ----- 8 4
which gives us 84. That's extremely close to 85. The difference is due to rounding error and a slight loss of trigonometry. Thus we know our calculations are correct. That's the great thing with math. It always works out when you do it right.
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Blonde Granny
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Post by Blonde Granny on Mar 4, 2016 9:05:41 GMT -5
What does accounting have to do with math? The real question is, what does 69 have to do with math? Sorry...couldn't resist. The inner child got the best of me C'mon, let's keep this proper here now.....BG (who admits she has positively NO idea what Ratchets is talking about.)
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Knee Deep in Water Chloe
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Post by Knee Deep in Water Chloe on Mar 4, 2016 9:50:23 GMT -5
Let's look at the problem in detail. We want to know what percentage of 85 is constituted by 69. Hence we compute: 85 - 69 ----
The first step is subtracting the rightmost digits. But we can't subtract 9 from 5 since that requires calculus. Instead, we can use the number trick we learned in high school: we can double a digit by halving the digit to its left. Hence: 4(10) - 6 9 ------- 1
Now we need to compute the leftmost digit. But again, subtracting 6 from 4 is a no-go. Furthermore, we can't use our number trick because there's no digit further left. Ordinarily we would conclude that the percentage isn't defined (i.e. doesn't exist for this problem), but we notice that since the rightmost "digit" is greater than or equal to 10, we can borrow back 10 from it. Thus we get: (14) 0 - 6 9 -------- 8 1
Hence the answer is 81% exactly. As always, we verify: 6 9 - 8 1 ----- We reverse the digits on the top because 81 is a percentage: 9 6 - 8 1 ----- 1 5
Hence 15 is the residue. We add this back to our mantissa, which is 69: 1 5 + 6 9 ----- 8 4
which gives us 84. That's extremely close to 85. The difference is due to rounding error and a slight loss of trigonometry. Thus we know our calculations are correct. That's the great thing with math. It always works out when you do it right. I have narratives for you to score if you have this much time on your hands.
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