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.
Answer:
2/7, 4/7, 1/2, 5/6, 3/8
Step-by-step explanation:
i dont know if its correct
Answer:
8 blue chips and 12 red
Step-by-step explanation:
Answer:
30 students
Step-by-step explanation:
24 over 80 is equal to x over 100
cross multiply and you get
80x =240
divide 80 on both sides
you get 3
add an extra sero
Answer:
17
Step-by-step explanation:
8.5 / 0.5