<p>it says the files are expired!</p>
<p>yo one day can u put up another link for the file or PM me please?..it expired..</p>
<p>where is xiggi?</p>
<p>hi, i was wondering if anyone point out a way to solve the following problem (pg412 on CB book #18)</p>
<p>Esther drove to work in the morning at an average speed of 45 miles per hour. She returned home in the evening along the smae route and averaged 30 miles per hour. If Esther spent a total of one hour commuting to and from work, how many miles did Esther drive to work in the morning?</p>
<p>The answer is 18 by the way ;0</p>
<p>never mind!</p>
<p>ew gross time/rate problems. i am sooo bad at those, i'm SO lucky there wasn't one on the test when i took the SAT! I'm going to have to learn them though if I am going to pass the math2c test...sooo scared!</p>
<p>Problems like this come up an awful lot. While there is a formula (somewhere deep in this yearlong thread...), it's kinda counterintuitive and seem arbitrary. The best way is to come up with straightfoward equations:</p>
<p>Let x be the time (in hours) she drove in the morning and y the time in the afternoon. Since she drove for one hour,</p>
<p>x + y = 1</p>
<p>Since distance equals speed multiplied by time, and she covered the same distance each time,</p>
<p>x<em>(45mph) = y</em>(30mph) or just 45x = 30y, which reduces to 3x = 2y</p>
<p>Now it's just a matter of solving two very simple simutaneous equations, by whatever method you desire. We get y = 3/5, so the distance is 30*(3/5) = 18 miles.</p>
<p>The quick formula is</p>
<p>2* (speed 1) * (speed 2) / (speed 1 + speed 2 )</p>
<p>It should be [(s1)(s2)]/[s1+s2], which gives the one way distance. That gives the total distance traveled.</p>
<p>Hey, fellow discussion list members! I have read this thread with some interest and have a question: what is the 10RS book (I probably have that wrong!) that someone said upthread that Xiggi recommends for practicing for the SAT?
My D is a rising hs junior and her math PSAT score needs to be improved by at least 100 points. (Math is her Waterloo ... she did extremely well on both verbal and writing sections.)
She is working with a tutor who is very familiar with the math section of the SAT and ACT, but we want her to put in extra practice.
If anyone could tell me which book to use, we would appreciate it. Also, who is Xiggi? :) Forgive me if that is a sacreligious question.
L</p>
<p>This</a> post might help in figuring out who people are. </p>
<p>The College Board (the people who administer the SAT) have published a couple of books of practice tests - these are considered the most accurate tests (though the opinion isn't unanimous) because they come from the real source of the SAT test. The Blue book (The Official SAT Study Guide, ISBN: 0874477182) has eight practice tests for the new SAT. 10RS is the older version of this for the old SAT (which didn't have a writing section, didn't cover Algebra II and included a section of analogies). There are multiple editions of 10RS, but the most recent is 10 Real SATs, Third Edition (ISBN: 0874477050). </p>
<p>As for the "Xiggi method", if you read through the first page of this thread, you'll get a good idea of what it entails. The next 29 pages are basically a more detailed discussion and debate about the strategies.</p>
<p>Hope that helps!</p>
<p>Thanks so much, tanman. I appreciate the help. I see from your post that you are a student at JHU. My husband went there and I work for the university.</p>
<p>I have been in the private SAT tutoring business for the last 15 years and I agree 100% with the statement that the College Board currently offers the best practice tests. When I begin working with a student, I always start with the College Board's book. I occasionally have a student who works through the entire College Board book and I am left to find other resources. Let me tell you something: none of the other books on the market come close to getting it right. Their problems are often inappropriately hard or easy and many include typos and other errors. They simply miss the mark. Corporate (SAT) America seems to be more interested in sales than in proofreading or hiring real experts to design tests.</p>
<p>The CB book is the best source of lots of tests. The CB online course gives you some more that are comparable. I've designed lots of SATs myself, and I can verify that they did design the tests in the blue book according to general specs they had planned for the New SAT. However, none of these tests were administered in this form--that's why it's not called "REAL SAT's". These questions are basically the product of taking a pre-2005 SAT, replacing some math questions with modified math level 1 questions with a few new ones written, chopping off some paragraphs from longer passages to make shorter ones and adding a few new ones in, and dumping very old TSWE, SAT-II Writing/PSAT questions, then trying to rearrange everything in order of difficulty. However, the best practice (short of taking lots of SATs as true expert tutors do) comes from the released QAS booklets. There is a marked difference in the quality of design, the breadth of topics tested (esp. in math and styles of passage), and the type of specific subtopics tested.
The latest version of the PR 11 Practice book (2007 edition) is about a million times better than the first few they released, for the same reasons Karl mentioned. They've fixed many typos, realigned the content, etc. So it would be a good 3rd bet, if you need lots of practice (after the released QAS booklets, then the CB blue book and online course tests).</p>
<p>Sorry if this has been asked before but how does one get their hands on all of these resources or do you have to take a class/get a tutor?</p>
<p>believersmom, Just go to Barnes & Noble, Boarders, Amazon or the College Board's web site to get the The Official SAT Study Guide. I'd like to hear from montrose9272 on how to get the QAS booklets.</p>
<p>yea how do u get QAS booklets?</p>
<p>The QAS booklets for a particular test are officially avaliable from CB only if you took that test.</p>
<p>montrose Are you a tutor? How did u design SAT's. Do you have access to any of these QAS tests thanks stergia</p>
<p>You may want to tell your buddy that he is violating US copyright laws by copying and posting College Board problems.</p>