Answer:
195.25
Step-by-step explanation:
Consider geometric series S(n) where initial term is a
So S(n)=a+ar^1+...ar^n
Factor out a
S(n)=a(1+r+r^2...+r^n)
Multiply by r
S(n)r=a(r+r^2+r^3...+r^n+r^n+1)
Subtract S(n) from S(n)r
Note that only 1 and rn^1 remain.
S(n)r-S(n)=a(r^n+1 -1)
Factor out S(n)
S(n)(r-1)=a(r^n+1 -1)
The formula now shows S(n)=a(r^n+1 -1)/(r-1)
Now use the formula for the problem
Hi There!
Given:
- A placemat requires 30 feet of ribbon
- Mandy has 200 feet of ribbon
To Find:
How many placemats can Mandy make, if she has 200 ft of ribbon?
Solve:
200÷30≈7
Thus, she can make 7 placemats.
<h3>Hope it helps & enjoy your day!</h3>

0.2 x 40
=8
(change the percentage to a decimal)
Answer:t the farthest city south is bellville and the volcano name is sue
Step-by-step explanation: