Answer:
6
Step-by-step explanation:
Given I varies inversely with R then the equation relating them is
I = 
← k is the constant of variation
To find k use the condition R = 12 when I = 3
k = IR = 3 × 12 = 36
I = 
← equation of variation
When I = 6, then
6 = , hence
R = 
= 6
Expression is 900 - 75n
Step-by-step explanation:
- Step 1: Maximum watts that can be used is 900W. Find amount of watts used by n light bulbs.
⇒ Watts used by n light bulbs = 75 × n = 75n
- Step 2: To find the remaining amount of wattage, subtract the maximum possible W and the watts used by the light bulbs.
⇒ 900 - 75n
Answer:
7.6 inches to the nearest tenth.
Step-by-step explanation:
18/24 = 3/4.
13.5 / 18 = 3/4.
This is a Geometric sequence with common ratio 3/4 or 0.75.
We need to find the fifth term of the sequence.
5th term = a1 (r)^(5 - 1)
= 24 * (0.75)^(5-1)
= 24 * 0.316406
= 7.6 inches.
