SAT January 2012 - Math

<p>Lets get it started.</p>

<p>What did you guys get for the problem with the height of the water on the tank? Mine was a fraction but I don’t remember exactly what</p>

<p>And what was the answer to the circle question about it intersecting the axes? I put 4. The radius was 10 and the point was at (8,9).</p>

<p>edit: yeah I was right about the circle it intersects at (0,3) (0,15) (4,0) and (12,0)</p>

<p>8/3
and
4</p>

<p>YES!!</p>

<p>What did you guys get for the number of times the letters ABCDE and could be rearranged with the specific restrictions?</p>

<p>4 as well for arranging of letters</p>

<p>yeah i got 8/3. those were probably some of the hardest</p>

<p>what was the one about the numberline with a, b, c, d? it asked what the smallest integer value of d was. it gave you AB=2BC=4CD and a,b,c, and d are all integers . i figured the points would be d=1, c=2, b=4, a=8</p>

<p>so I put 1. i didnt do any math so i’m probably wrong, especially since that was the last question in the section</p>

<p>How could the letters question be 4? I thought DACBE and DACEB were all you could do since C couldn’t be the 1st or 5th term, c and d had to enclose a, and b and e had to be next to each other</p>

<p>I think that one was def four because of the restrictions on C</p>

<p>For the one with the five boxes with letters in them, I said only 2 possibilities.
For the one that had X^Y and XY, what is Y^X I said 1. It seemed suspiciously too easy to me.</p>

<p>Awesome!! and what about the lowest possible value for D in the decreasing lengths on the number line? all had to be positive integers.</p>

<p>@mikescarn</p>

<p>It was either 1 or 7. Since d was going to the right it may have been a larger value than A, but I am not sure if the order mattered?</p>

<p>For the number line I’m pretty sure that d=8</p>

<p>edit:
All the numbers had to be integers.
a=1
b=2
c=4
d=8</p>

<p>you can get DACEB, DACBE, EBCAD, BECAD so 4. and no order mattered, thats why I got 8 is the smallest value.</p>

<p>4 possibility, it had me ****ting bricks till i actually thought about it, then it qas
Easy. Daceb, dacbe, ebcad, becad</p>

<p>wasn’t it the other way around? it was abcd in descending values</p>

<p>A----B–C-D</p>

<p>oh and thanks rahmaniac</p>

<p>Number line was 7… Ab-4 bc -2 cd-1</p>

<p>Crap, forgot that e and d could be switched around making it 4 instead of 2.</p>

<p>it was d=8, but that is not the right order.
it was suppose to be 1,5,7,8. 5-1=4. 7-5=2. 8-7=1. Thankfully the order did not matter since the last one will be 8.</p>

<p>@SAT100 it was asking for what d was not the length of the line</p>

<p>@runallday4 me too haha there goes the 800</p>

<p>is there a concensus on the water volume question? 8/3</p>

<p>A-B=4
B-C=2
CD=1</p>

<p>4+2+1=7</p>

<p>I realized this after time was called.</p>

<p>The only problems that worried me were the possibility, and tank ones. Both of which i ended up getting right, 4 and 8/3, respectively. The one that was:
X+y+z= 500
X-t-z= 200
Was very trick i thought it was 200 but it was actually 150</p>