Official Act Math Thread February 2013

<p>What did you think- hardest questions?</p>

<p>I thought the question asking about the distance between the four towns on the straight road was one of the most difficult, just because it was time consuming.</p>

<p>I think i got that one, but I thought at one was also a tad difficult. Can you try and repeat the question on the thread for everyone. What did you get?</p>

<p>Um, I’ll try. There is a straight road between two towns, A and D, that is 60 miles long. Along this road, there are two cities that are 22 miles apart. B and C. If A to C is twice the distance of B to D, what is B to D?</p>

<p>^Delayed
The answer is 12. I dont exactly remember how I figured it out but it worked.</p>

<p>The difference between the two middle cities was 22, where the total distance was 40. It said that the distances from C to D (or w/e the names were) was twice that of A to B. There for x + 2x = (40 - 22), x = 6. 2x = 12.</p>

<p>12 was definitely the correct answer… I don’t know about you, but I thought that math was relatively easy this time around</p>

<p>Y’all are right, turns out I misread the question. That ones on me :/</p>

<p>What about these two questions.The one with the period and the one with the ellipse?</p>

<p>Loudest trumpet, thanks for showing the work. I agree with both you and cengel1996. Delayed, thanks for showing the work. What else were difficult questions.i am so gd" damn bad at recalling things. I know there were other hard ones, especially in the fifties.</p>

<p>I agree; the math section seemed to be easier. However, I couldn’t figure out the probability question that was toward the end. I spent the probably 20 minutes on that question–20 minutes I would have usually spent checking the test over–so I’m hoping I didn’t make careless errors in other math questions. I never did end up getting that question though, and I doubt I guessed correctly. So with that question being wrong and not spending any of the time checking over, this wasn’t my best test. Anyway, after that pointless rant, yes I did believe the math was easier for the most part.</p>

<p>Also what about the probability one at the end with the spinner and bag of marbles?</p>

<p>The math section was honestly the biggest joke. Finished with like 30 mins left…</p>

<p>Oh I got 3/4 for the probability one and I know it’s right</p>

<p>^taytay If I remember correctly I got 2pi for the period one. And the ellipse one I believe was x^2/9 + y^2/16 = 1</p>

<p>Probability Question: There’s a spinner that has equal areas of green, blue, purple, and yellow sections. There’s a bag that has 3 green, 4 blue, and 5 purple marbles. 12 marbles total. What are the odds you will choose different colors?</p>

<p>I got 3/4</p>

<p>Wasn’t the period 4pi?</p>

<p>I also got 12 for the abcd distance one.
What did you guys get for the rewriting of 0<sq root x < 9 ? ( I think that was the problem). Also for the adult ticket child ticket each adult is 7 and kid is 3, how many adult tix were there question, what was the answer? I put 150 but think that’s wrong. Also, for the question that asked about raising the book price by 50 cents and the new equation, what did you get? Thanks!!!</p>

<p>Yea, for that probability one with the bag of marbles and spinner, I guessed 1/3.
I literally just messed around with the numbers and somehow got 1/3 and went with it.
I think I found the probability of getting one color on the spinner times getting possible colors other than the one picked and repeated it 4 times.
And the ellipse one, I picked the one that was exactly the same but different middle operation sign, + to a -. I got it wrong though, a friend said it was the one with - in front of the x^2 and everything else the same.
What about the n question regarding how many total hours the class read the books? It was the 3rd one in the set of 3 questions over that chart given</p>

<p>Gleek:</p>

<p>1 < x < 81</p>

<p>I think I got 150 for the ticket one.</p>

<p>1.5x + 44</p>