Official October SAT Math Discussion

<p>Unfortunately many schools don’t even look at the writing section. Not sure about the ones you mentioned, though.</p>

<p>Math

  1. 1/8 (whale)
  2. 12 (perimeter of triangle inside circle)
  3. 78% of votes went to non-winner
  4. 8 pieces (60 inches rope)
  5. x=5 (z+2x+y=10 ; 2z+2x+2y=10)
  6. 54 (cube surface area)
  7. 12π (volume cone)
  8. 2:1 (marker/rest area)
  9. Three ordered pairs
  10. 9/22
  11. (-2/7)x+7 (perpendicular line)
  12. 165 minutes (telephone companies)
  13. 130 (potato temperature)
  14. 128 (half square)
  15. √130 (diagonal of square)
  16. 2x√3 (length AC)
  17. |w-500|≤15 (cookie company)
  18. 6 (# lines to connect 4 dots)
  19. I, II, III (question w/ f function graph, F(7) > F(9) etc. )
  20. a+b (Greatest value of two fractions)
  21. (-1, 3) (reflection over y=x)
  22. 330 (money Luis spent)
  23. 6 (Sum of exponents)
  24. 0 (median/mean difference)
  25. 33 (Maximum perimeter of triangle)
  26. 1600 (absences, total number of students)
  27. 5 (slope from max of parabola to a point)
  28. 998 (sequence)
  29. x+y+z > 270 (four angles, this was false)
  30. 3/2 ( f(6) / 6 )
  31. 7 (15 – b = 8, what is b)
  32. (75-n)/2 (shirt, pants problem)
  33. 3k^2
  34. y^2-x=0 (√x-y=0 problem)
  35. f(a)=f(b) @ 4 (graph question)
  36. 7 (2B8/11 remainder)
  37. 250 (club member problem, total number of seniors)
  38. y = 65 degrees
  39. 87 (largest angle)
  40. number line X [25] Y … (X+Y= 50)
    50)-3 (sum of something??) </p>

<hr>

<p>Last edited by coolpillow; Yesterday at 08:26 PM. </p>

<p><strong><em>This is on the Oct. 2012 SAT Discussion Forum; page 98</em></strong></p>

<p>Wasn’t the percent of votes to non-winner 72% not 78%?</p>

<p>Yeah I remember getting 72 percent as well.</p>

<p>I think I got 78%, not sure. (can you check your calcs?)</p>

<p>I don’t think it was possible to get 78%, because there were only 4 candidates if I remember correctly.</p>

<p>The answer was 72%. I remember the question 100%.</p>

<p>Can somebody remember what the questions said on number 32? Don’t remember that.</p>

<p>Also on the how many lines to connect 4 dots, wouldn’t that be 3?</p>

<p>Also I have no recollections of number 34, anybody care to give the question?</p>

<ol>
<li><p>Jim spent 75$ on two pair of pants and a shirt. the two pairs of pants cost the same amount. write an equation to find out how much the pants cost if the cost of the shirt is n.</p></li>
<li><p>just asked for another way to rewrite √x-y=0 and y^2-x=0 was an option.</p></li>
</ol>

<p>for the gird in one about the marbles (answer was 9/22) do you think .41 would be acceptable?</p>

<p>I have the same question as colllege95, but would .409 or .410 be acceptable? </p>

<p>As for “Also on the how many lines to connect 4 dots, wouldn’t that be 3?” I believe it was 6.</p>

<p>No idea, I just wrote 9/22
I alarmingly have only a tiny recollection on number 32, and nothing on 34. But those problems are so easy that there’s no way I got them wrong if they were on my test.</p>

<p>Unless i made a stupid mistake. Dastardly stupid mistakes</p>

<p>And I oddly have a feeling that I put 6 also. But sitting at my desk I just drew 4 dots in different ways and found 3 segments between each time. Maybe it was a different number of dots?</p>

<p>32) (75-n)/2 (shirt, pants problem)
It was 2 shirts(same price) and 1 pair of paints.</p>

<p>And the other one I don’t remember either.</p>

<p>@Asian it specifically said each letter could only connect to another letter once. I wrote it out and drew it(i’ll write it for you).</p>

<p>Dots A, B, C, D.</p>

<p>AB
AC
AD
BC
BD
CD</p>

<p>=6.</p>

<p>You can’t do DA or BA or any of them backwards because it specifically said you could only connect each letter once, so writing it backwards didn’t work.</p>

<p>And Reckie, I had a teacher and I vaguely remember him telling us to always use the fraction but round to 3 decimals if we had to so .409
And seeing that there were only 4 blanks for the grid ins, I would expect it to be 3</p>

<p>Yea @Reckie I misread the problem, I thought it meant what is the minimum number of lines to connect the pts. ***** Oh well, I only got 1 wrong and 2 omit so far.</p>

<p>Sucks man, I really don’t know how many I got wrong. I think I’ve seen 2-3 I know are wrong, but I have a feeling it’s more like 5-6, and 3 omitted.</p>

<p>Actually one of the ones that I omitted may have been experimental, did you have the section with the Half circle in the square in the other square, and find the probability of landing in the half circle? And the greatest difference between a girl’s items?</p>

<p>I think that was experimental but not sure</p>

<p>The answer to the half circle one was something like 25pi-24 /100</p>

<p>I don’t think I had that one, and I didn’t have an experimental, so yes it probably was.</p>

<p>Can someone go over the problem that was like k^x k^2x+1 = 3k^2</p>

<p>I feel like i remember getting 9k^2 but i cant remember the question for the life of me </p>

<p>Also does anyone remember a problem with a line tangent to a circle with center O, what angle is y?</p>

<p>What was the whale one? I don’t seem to remember LOL</p>