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2407 clicks; posted to Main » on 26 Sep 2013 at 11:37 AM (3 years ago)   |   Favorite    |   share:    more»

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Pick: I asked my nephew who was 17 at the time and considered gifted by his parents, a simple mathematical question; How many gallons of water fall on an acre, if one inch of rain falls upon it? He did not know how to even start to calculate the answer.

I'll take, "Who the fark cares?" for 600, Alex
The kids are just dumbing down in preparation for their stellar careers in food service, sanitation engineering, and as Wal-mart workers. It's better not to think about it too much. Very smart of them.
 1 vote:
farm machine:
Step 1.  Determine area of an acre of land (acre = 204' x 204')
Step 2.  Determine volume of water if entire acre is covered in 1" of water

While one might plug in the wrong numbers, transpose them, etc. you have shown that you understand what is required to arrive at the answer.  Even though your final answer may not be the correct one.  Getting the right answer is important but its also good to prove that you understand the concepts and have problem solving capabilities.

Close. 208.75 squared, number of square feet. Divide by 12, number of cubic feet of water. Density of water is 1 gram per cubic centimeter. Multiply your cubic feet by 900 (roughly the number of cubic centimeters in a cubic foot), divide by 30- number of grams in an ounce.

So, roughly, back of the envelope, using round numbers:

210 squared is 44100 square feet.
44100 square feet each an inch deep divided by 12 is 3675 cubic feet.
Taking our next two steps together (multiply by 900, divide by 30), divided by 30 is 110250 ounces of water
110250 ounces is 861.328 gallons, so 861 gallons, plus about a quart and a pint.

At least that's what I got. Dimensional analysis doesn't work, anyone see my error.
 1 vote:
"Kids are like any other group of people... a few winners and a whole lot of losers"

- George Carlin
 1 vote:

Uranus Is Huge!: They'll rescale the scoring again in a few years. Back in my day, a 1300 meant something.

In my day 1350 meant something.

/it meant i took it twice and added the scores together.
 1 vote:
ikanreed:

To be fair, imperial units suck balls.

-overheard at Yavin 4
 1 vote:
SAT and IQ scores are meant for the consumption of nerds, by nerds.
 1 vote:
does this lend credence to the "SAT is biased in favor of White people" arguments?
more minorities taking the test, test scores go down on average.
 1 vote:

ERNesbitt: New SAT format:

"If you have one bucket that contains 2 gallons and another bucket that contains 7 gallons, how many buckets do you have?"

12?  DAMMIT!
 1 vote:
New SAT format:

"If you have one bucket that contains 2 gallons and another bucket that contains 7 gallons, how many buckets do you have?"
 1 vote:
Headline: "High School Student's SAT Scores Continue to Slip"

FTA:

"High school seniors who graduated earlier this year generated the exact same scores as last year's crop of test takers."

"Continue" and "slip" - what do they MEAN?

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