<p>Let's get started!</p>
<p>what was the answer for x,y,z,w all less than 7, and the mean of two numbers were 4 or something</p>
<p>I got none, because you had to take the integers, add, and then divide by two for the mean. I got decimal values all the way through, so none.</p>
<p>Missed about 4. There was this one that I still don’t know how to do. I don’t remember exactly but people will get what i’m talking about:
A person bought an x number of t-shirts 15$ each and a y number of sweaters 20$ each. She had to pay a total of 95$. How many t-shirts did she buy?
15x + 20y = 95
Anyone know how to solve this?</p>
<p>Question about sweatshirts and t shirts? Wasn’t this on the student-produced responses section?</p>
<p>Yes it was.</p>
<p>Yeah I remember skipping it, but I do not remember if I went back and solved it. We need two equations for two variables, though. That’s what I had trouble with.</p>
<p>@Haphazard how was it none?
it was like this: w < x < y < z < 7
find pairs that have the mean of 4
This is how I thought
w, x, y, z could be any of 1, 2, 3, 4 ,5 ,6
2,6 and 3,5 add up to 8
so w, x, y, z is 2, 3, 5, 6
pairs are w & z and x & y
But there was no choice with w & z :|</p>
<p>The answer for the t-shirts was 3, I believe. I don’t remember what I put, but 100% sure I got it right. I worked it out like twice.</p>
<p>@Haphazard how would you work it if it was like what I said?</p>
<p>I believe it was 2 t-shirts.</p>
<p>(2 * 15) + (3*22) = 96</p>
<p>2 t shirts.</p>
<p>Haphazard is wrong on both questions I believe. Two t shirts is explained above. Also I remember the other one being II and III only, blader. I do remember the choices were the two integers next to each other, as in x and y and y and z. </p>
<p>Haphazard’s reasoning doesn’t make sense for that question, though</p>
<p>^Also got 2 on the T-Shirt Q.
For the wyz question, I put I, II, and III. Since you didn’t know the value of any of the variable and all you knew about them was that they were less than 7, any of the pairs could have had a mean of 4. (i.e. any of the pairs could have been 3 and 5)</p>
<p>2 shirts is right, but i don’t remember the other wxyz question. Does anyone recall the pentagon question and the driving one above it? I think they were student produced response questions.</p>
<p>@overachiever63 the pentagon with the square or the 2 pentagons that overlap and one rotates from point x to point y ?</p>
<p>The overlapped ones… On another thread people are saying 162, which is what I put, but they got it by doing (72<em>3)-54, when I just did 54</em>3; I think I just got really lucky if 162 is right xD </p>
<p>Do you have a legit explanation?</p>
<p>Lol I just realize I forgot about 54. Can you tell me what was the problem again?</p>
<p>It had the overlapped pentagons, and a given measure of 54 for one angle, and then it asked for the smallest value the pentagon with x would have to rotate to be on top of point y.</p>
<p>Oh great. For some reason, I have this doubt about whether I put 162 or 165 for the pentagon answer. This will haunt me for a long time. :(</p>
<p>Only almost three weeks hehe 
</p>
<p>I totally know how you feel though, I hate how long we have to wait -.-</p>