Answer:
The value of the excluded number is 35.
Step-by-step explanation:
Write out six letters to represent these six numbers;
a + b + c + d + e + f
---------------------------- = 30. Note that if "f" is excluded,
6
a + b + c + d + e
---------------------------- = 29.
5.
Thus, a + b + c + d + e = (5)(29) = 145. Replacing a + b + c + d + e in the first equation by 145, we get:
145 + f
----------- = 30, which means that 145 + f = 180. Solving for f, f = 35.
6
The value of the excluded number is 35.
-3(-x)-6=-3x+10
-3 -3
(-x)-6=-3x+7
-6 -6
(-x)=-3x+1
i only got this far!! im so sorry!!
Practice makes perfect! You'll only get better by working hard! :)
The travels you have described are:
(Middle floor) + 8 + 5 - 9 + 7 - 32
= (middle floor) + 20 - 41
= (middle floor) - 21 brought her to floor #1.
So Middle floor - 21 = 1
Add 21 to each side: Middle floor = 22
The building has (2 x middle floor) = 44 floors.