<p>Hi I am solving from official I have 3 questions thanks in advance.</p>
<p>A cube has 2 facies painted black and the remaining faces painted white. The total area of the white faces is 64 inches. What is the volume of the cube in cubic inches ?</p>
<p>1)64
B)125
C)128
D)216
E)256</p>
<p>The average (Arithmetic mean) of these positive numbers,x,y,z, is 12. When the greatest of these numbers is subtracted from the sum of the other two,the result is 4. If x < y < z,which of the following equation could correctly express the information above?</p>
<p>1)x + y + z = 36
x + y - z = 4</p>
<p>2) x + y + z = 36;
x + y - z = 8;</p>
<p>3) x + y + z = 24;
x + y - z = 8</p>
<p>4) x + y + z = 36;
xy - z = 4;</p>
<p>3) 3,4,6,7,10 </p>
<p>The number n is to be added to the list above. If n is an integer,which of the following could be the median of the new list of seven numbers ? </p>
<p>1)6
2)6(1/2)
3)7</p>
<p>1)1 only
2) 2 only
3)3 only
4) 1 and 3 only
5)1,2 and 3.</p>
<p>A cube has 2 facies painted black and the remaining faces painted white. The total area of the white faces is 64 inches. What is the volume of the cube in cubic inches ?</p>
<p>1)64
B)125
C)128
D)216
E)256</p>
<p>A cube has 6 faces. Therefore 6-2=4 are white. So the area of 1 white face is is 64/4=16 inches. Thus the length of a side of the cube is 4 (take the square root of 16). Finally, the volume is 4^3 = 64 cubic inches, choice (1).</p>
<p>The average (Arithmetic mean) of these positive numbers,x,y,z, is 12. When the greatest of these numbers is subtracted from the sum of the other two,the result is 4. If x < y < z,which of the following equation could correctly express the information above?</p>
<p>1)x + y + z = 36
x + y - z = 4</p>
<p>2) x + y + z = 36;
x + y - z = 8;</p>
<p>3) x + y + z = 24;
x + y - z = 8</p>
<p>4) x + y + z = 36;
xy - z = 4;</p>
<p>SUM = AVERAGE * NUMBER
that is, you change an average to a sum by multiplying the average by the number of things you’re averaging.</p>
<p>In this case x + y + z = 12*3 = 36.</p>
<p>For the second equation just change the words to symbols:the greatest of the numbers is z, and the sum of the other two is x + y. Thus (x + y) - z = 4.</p>
<p>So the answer is choice (1).</p>
<h1>3: NOTE: I think you typed this question wrong, since I only see 5 numbers there to start, but I’m going on what I think the question is asking (assuming that the original list has a median of 6.5 – that the missing number is an integer greater than 6).</h1>
<p>The median is just the middle number in the list or the average of the 2 middle numbers if you have a list with an even number of values. You’re going to have seven numbers once you add one, so the median will be the middle number. Since the number you’re adding is an integer, you’ll either be making 6 (if your integer is less than 7) or 7 (if your integer is greater than 6) the middle number. The only way the median could remain 6.5 is if you added 6.5 to the list, but you can’t because that’s not an integer.</p>
<p>Question 3 is written incorrectly. You’re missing a number.</p>