The windows of a downtown office building are arranged so that each floor has 6 fewer windows than the floor below. If the groun
d floor has 52 windows, how many windows are on the 8th floor?
1 answer:
Answer:
10
Step-by-step explanation:
This is an arithmetic sequence. The common difference is -6, and the first term is 52.
a = 52 − 6(n − 1)
When n = 8:
a = 52 − 6(8 − 1)
a = 52 − 42
a = 10
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