October 2011 SAT Mathematics

<p>120*120 = 14400.</p>

<p>Sorry man.</p>

<p>@ProspectiveAppli</p>

<p>The Monday’s mean one.</p>

<p>@michaelzhu93</p>

<p>The question asked for f(x) + h(x) = g(x)
Columns were organized f(x) g(x) h(x)</p>

<p>

</p>

<p>Anyone have the question for this one?</p>

<p>What’s the answer to the terms one?</p>

<p>Ok so I’ve been reading through all of the answers, and it looks like the only one I’ve missed (so far) has been the |y| - y write-in question. I could’ve sworn it said |y| + y, so I put 0 as my answer. Can you guys confirm that it in fact was |y| - y, and also what do you think my score will be with a -1 write in?</p>

<p>@ufiscool</p>

<p>aww poop. Yeh idk what I was thinking >.></p>

<p>@chaosdog The Monday’s mean attendance to fitness class.</p>

<p>Anyone get 1 for the f(x)+g(x)=h(x)?
IIRC it was 2+3=5</p>

<p>ahh alright thanks, anyone remember the fill-in questions for 72 and 78?</p>

<p>How many mondays for july and august?</p>

<p>yes, columns were in difference places, that one was tricky :P</p>

<p>it was like -1 + 11 yielded a 10 in the middle.</p>

<p>goose it was |y| - y, anyone remember the answer to this?</p>

<p>Goose it’s definitely l y l - y</p>

<p>hang on hang on hang on</p>

<p>how the hell was the scarves one 4/5? I got 24/25, which I made .96…</p>

<p>■■■ ■■■ ■■■ ■■■ ■■■ ■■■ ■■■ ■■■</p>

<p>** n is an integer divisible by both 24 and 10. k is an integer that satisfies n = k^2. What is the lowest possible value of n? **</p>

<p>Basically, you are trying to find a number that is divisible by 24 and 10 and that is the square root of something. </p>

<p>The easiest way to do this is to just square consecutive integers until you get an integer that is divisible by 24 and 10. </p>

<p>To be divisible by 10, the number must end in 0. Any number with 1-9 in the one’s digit place, will not produce a square with a 0 in the one’s digit place. Furthermore, the gird on the SAT only holds 4 places, so the number cannot be 3 digits long (a 3 digit number squared is 5 or more digits long). </p>

<p>Thus, we have a two digit number that ends in 0. We will square these number until one is divisible by 24. So…</p>

<p>*10^2 = 100 / 24 = 4.1666
20^2 = 400 / 24 = 16.666
30^2 = 900 / 24 = 37.5
40^2 = 1600 / 24 = 66.6666
50^2 = 2500 / 24 = 104.1666
60^2 = 3600 / 24 = 150 = ** Integer ** *</p>

<p>60 Is the first number squared that produces a number divisible by 24. Therefore, the answer is 3600. </p>

<p> To verify answer: </p>

<p>3600 / 24 = 150
3600 / 10 = 360</p>

<p>n = 3600 = k^2 k = 60 = Integer</p>

<p>@Grimsam</p>

<p>The first choice doesn’t matter because whatever the first choice is, there will always be a 4/5 chance of the second scarf matching.</p>

<p>Was there an experimental math section for the test with l y l - y in it?</p>

<p>that wasnt experimental, it was one of my only fill-ins</p>

<p>Was the answer to the terms question 1?</p>