<p>^Oh is the bad question you were referring to in your “PSAT Percantiles and SAT Concordances” Thread? I see what you mean now… :(</p>
<p>Yes, that is indeed the question that I petitioned to ETS. I assert that it should be “explanation for.” I can email you my eighteen-page petition if you want. :)</p>
<p>18 pages?! :eek: Sure, I would like a look at it. I’ll PM you my email. 
But would “explanation to” be acceptable as well?</p>
<p>In my research, I did not find any dictionaries that used the phrase “explanation to.” I did find that form in some other sources, but I could not confidently determine its standard uses.</p>
<p>Silverturtle, you are a beacon of hope to CC…</p>
<p>I admire your tenacity, humility, and general skill. I raise my glass to you.</p>
<p>Also, I received a 5 on the AP Spanish test, do you think that this could translate to a good score on the SAT Subject Test? </p>
<p>I have not taken Pre-Calculus as well… and it is the weakest part of my app I believe. Do you think it is possible to self-teach the subject and score decently on the SAT Subject Test Math II? Do you think that colleges will note the “auto-didactic” nature of such a feat?</p>
<p>I totally would have put E on that question.</p>
<p>Silverturtle,</p>
<p>I’ve been practicing for my practice PSAT (I’m a rising sophomore) using old PSAT tests that I ordered from the College Board. I figure that if I do well enough, I’ll prep for and take the SAT in May/June.</p>
<p>Firstly, I’d like to thank you for this guide. Thanks in huge part to your grammar guide, I received a score of 80 on the October 18, 2008 Writing section! =D (And yes, I timed myself!)</p>
<p>Math, however, is giving me trouble. Even without stupid mistakes, my score usually hovers around 68-70. Could you explain these math questions to me? I see a lot of variations on the following types of questions, and my lack of understanding is holding me back.</p>
<ol>
<li>How many positive four-digit even integers have a 5 in the thousands place, a 2 in the tens place, and at least one of the digits equal to 6?</li>
</ol>
<p>A) 10
B) 12
C) 14
D) 16
E) 18</p>
<p>Why isn’t D correct? I’m very confused…</p>
<p>These are grid-ins that I had no idea how to go about:</p>
<ol>
<li>If n is a positive integer and x > x^n > 0, what is one possible value of x?</li>
</ol>
<p>Can’t remember the answer(s)</p>
<ol>
<li>If a/b=2/5 and b/c=1/3, what is the value of a/c?</li>
</ol>
<p>Answer: 2/15</p>
<p>For 36, any number less than 1 but greater than zero would work, because a fraction raised to a power yields a smaller number. For example, .5> .5^2>0, if n=2.</p>
<p>For 38, solve for B in the first equation, and then substitute.</p>
<p>For 19, the form is 5<em>2</em>(even). Then find how many follow that rule. There are 10 that go 5(x)26, wtih x being any number 0-9. Then if you go 562(x), there are 4 more solutions, with 2,4,6, and 8 all possibilities. This leads to 14 solutions.</p>
<p>Well, I’m not but silverturtle, but:
36. Assume n=2 since it can be any positive integer. If x=1/2, then 1/2 would be greater than (1/2) squared, which would be 1/4. Any number between 0 and 1 would work for this problem.
38. Multiply a/b and b/c together to get a/c which equals 2/5x1/3 or 2/15.</p>
<p>I don’t remember how I did 19 right now; I believe I just listed all the possibilities.</p>
<p>People are talking about Grammatix, but cannot hit that book in Amazon.
Where can I find it? Did anybody use that book?</p>
<p>Am looking for practice questions in Grammer
Any advice?</p>
<p>^Yes. This probably helps only a tiny bit, but it is spelled grammar, not grammer.</p>
<p>
I used it. You can’t find it anymore because it’s an e-book that’s not sold anymore.</p>
<p>Thanks, hahalolk and LightSource. =) I can’t believe I forgot about fractions in 36! All too often, I miss the obvious and mess up the entire question because of it.</p>
<p>I have a clarifying question, though…</p>
<p>
</p>
<p>Wouldn’t 5620 work as well? That’s what tripped me up - I thought that 562(x) had 5 possibilities.</p>
<p>
</p>
<p>Though I admire and respect your test-taking proficiency, I have to say this sounds rather obsessive… and like a waste of effort :-/</p>
<p>Don’t count 5626 twice.</p>
<p>^You’re right. Yes, 5620 would work. Silly me :p</p>
<p>
</p>
<p>It sure does, doesn’t it? :)</p>
<p>
</p>
<p>Eh, it’s always fun to try to get at the establishment (in this case ETS and the College Board). And I did get dozens of requests from other CC’ers who disagreed with the question, so they sort of enabled me. :)</p>
<p>
</p>
<p>Oh! Right. This is why I should have actually LISTED OUT the possibilities. =P</p>
<p>Thanks silverturtle. This is awesome!</p>
<p>
</p>
<p>Made me laugh a little.</p>
<p>Helpful guide overall, especially the grammar section.</p>