Official Act Math Thread June 2013

<p>^ that is correct</p>

<p>wait so it was 252, not 240? weren’t there only 40 posts x 6 planks?</p>

<p>Nah it was like 30<em>48 dimensions. You had a side of 48, 30, and 48. Every 6 ft, there were 12 planks. So add those up and get 126 ft and divide by 6 to get 21. 21</em>12 =252</p>

<p>For an early problem i was stumped. Remember the one that said a rectangle and a square have the same area. The rectangle’s width is 2 and its perimeter is 32. What is the square’s length. </p>

<p>I thought that the rectangle’s length would be 14 so the perimeter is 32. Then 14*2 (area) is 28. Therefore, the side of the square would be square root of 28, but there was no answer like square root of 28. Someone help.</p>

<p>@ketann, the length of the rectangle was 5 more than the width (or something like that). You needed to take that into account. The rectangles length wasn’t 14.</p>

<p>What was the answer to the rectangle area = square area?</p>

<p>No, I think you’re referring to another question; that one was easy. But I think i’m accurate in the question I posted. I’m not sure though. </p>

<p>Anyone remember the question?</p>

<p>" Remember the one that said a rectangle and a square have the same area."</p>

<p>You literally asked this question.</p>

<p>Does anyone remember the answer to this one?</p>

<p>What about the ab one? It was like it can only be factored by: 1, a, ab, etc. I don’t remember it</p>

<p>What is the answer of Q26?
It is about a list of number that multiply by 4/3, then divide by 6, and divide by a number to get the same number. </p>

<p>I don’t understand what the question ask for</p>

<p>Reply to #309
I chose 1, every number can be divided by 1 except 0</p>

<p>@stupidboy</p>

<p>I believe the answer was multiply by 8. I didn’t know how to solve it so I plugged and chugged and I got 8.</p>

<p>Can anyone please describe the question a little bit more?</p>

<p>I got 1 too, but zero can also be divided by 1: you get zero. Zero divided by zero is undefined.</p>

<p>Just thought you’d like to know.</p>

<p>Here are the answers I got</p>

<p>@ketann: That one was a square with side length of 8 because 2*32 = 64 and s^2=64 so s=8</p>

<p>@mmourkous: yeah I also got 1</p>

<p>@stupidboy: I got 8 also</p>

<p>The question asked for: if a person multiplied a set of numbers by 4/3 and then divided it by 1/6, what number is he functionally multiplying the entire set by?</p>

<p>I think it was 2/9</p>

<p>The rectangle and square question said something along the lines of the rectangle had 5 more inches on the length than the square but had the same area. They wanted you to find out what was X. It was an easy plug and chug question.</p>

<p>12.5 was the answer</p>

<p>Could someone say the question?</p>

<p>the one thats answer was 1, i thought it was (3/4) it asked for what number can you mulitple 4/3 by and then divide by 6: i chose 3/4
am i thinking about a diff one?</p>