SOLUTION: The ground floor of a tower has a very high ceiling, and the residential floors above it each have a constant, smaller, height. The table compares the floor number and the height

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Question 1156419: The ground floor of a tower has a very high ceiling, and the residential floors above it each have a constant, smaller, height.
The table compares the floor number and the height of its ceiling above the ground (in meters). The ground floor is floor 0, and floors 1 and up are the residential floors.
Floor Height (meters above ground)
8 31.6
15 54
22 76.4
What is the height of the ground floor?
______ meters


Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The ground floor of a tower has a very high ceiling, and the residential floors above it each have a constant, smaller, height.
The table compares the floor number and the height of its ceiling above the ground (in meters).
The ground floor is floor 0, and floors 1 and up are the residential floors.
Floor Height (meters above ground)
fl | ht
-------
0 |
8 |31.6
15 |54
22 |76.4
:
Find the height of each residential floor
%28%2876.4-31.6%29%29%2F%28%2822-8%29%29 = 3.2 meters
find the height of all the residential floors
22 * 3.2 = 70.4 meters
Find the height of the ground floor
76.4 = 70.2 = 6.2 meters
:
What is the height of the ground floor?
6.2 meters