A wooden ladder is wider at the bottom than at the top and has 10 equally spaced rungs the bottom ring is 22 inches long and the

Question

3 years ago

10

top rung is 14 inches long what is the total length in inches of all the rungs together

1 answer:

Lunna [17] · Answer 1 · 2022-06-08T23:49:57+03:00

Lunna [17]3 years ago

6 0

Answer:

180 inches

Step-by-step explanation:

This is an arithmetiic sequence. The sum of such a sequence is

s(n) = (n/2) * (a1 + an), where a1 is the first term and an is the last (or nth) term.

Here,

s(10/2)(22 + 14) = 5(36) = 180

The total length of the runs is 180 inches.