SAT Math Problem help

Test Preparation SAT Preparation
1

<p>for how many integers n between 300 and 400 is n^(2/3) also an integer?</p>

<p>a none
b one
c two
etc</p>

<p>i got it right simply because i guessed 7^3 was the only number between 300 and 400.</p>

<p>is there a real mathematical way to do this?</p>

<p>this is from an SAT academy that administers tests that are usually a 100 or 200 point deflation from a person's real score (atleast in my experience), which means the math is generally harder.</p>

<p>also PLEASE</p>

<p>i'm sitting on a 2290 730M 800CR and 760W (79/8)</p>

<p>which books should i get for self study (i'm no longer trusting the classes at the academy, just taking their tests each weekend)</p>

<p>i have erica m grammar book which i think for sure is the right choice (yes?)
not sure about math as this community seems to be divided between 3 or 4 different ones (dr chung, barrons, grubbers um...)</p>

2

<p>Not that I can think of, unless you consider that n has to be a perfect cube and the only perfect cube between 300 and 400 is 343.</p>

3

<p>any suggestion for math books? i need a comprehensive book with LOTS of practice questions.</p>

<p>also please nothing too far off from REAL sat questions as i already get a lot of inflated-level problems from my academy.</p>

<p>also erica m book is the RIGHT choice (RIGHT?)</p>

4

<p>I have it and like it^</p>