Answer:
B. 97.2
Step-by-step explanation:
The sequence of positive terms is ...
54, 24, 10 2/3, 4 20/27, ...
This sequence has first term 54 and common ratio 24/54 = 4/9. The sum of the infinite series is ...
S = a1/(1 -r) = 54/(1 -4/9) = 54(9/5)
S = 97.2
The sum of the positive terms in the infinite series is 97.2.
Mentally your dividing the 12.50 by 10 and then thats 1/10 of it.
Complete Question
It takes 28minutes for 7 people to paint 7 walls. How many minutes does it take 14 people to paint 14 walls?
Answer:
28 minutes
Step-by-step explanation:
It takes 28minutes for 7 people to paint 7 walls.
Hence, the today number of minutes for 1 person to paint the wall =>
7 people = 28 minutes
1 person = 28 minutes × 7 people =
198 people minutes = 7 walls
1 wall = 198 /7
1 wall = 28 people minutes
How many minutes does it take 14 people to paint 14 walls?
From the above calculation,
1 wall = 28 people minutes
14 walls =
= 14 walls × 28 people minutes/14 People
= 28 minutes
Therefore, it would take 28 minutes for 14 people to paint 14 walls.
Answer:
Statement A and C are true about the normal distribution.
Step-by-step explanation:
We have to identify true statements for normal distribution.
A) True
The mean, median and mode for a normal distribution are same
B) False
The parameters of normal distribution are mean and the standard deviation.
C) True
According to Empirical rule for normal distribution about two-third of data lies within plus or minus one standard deviation from the mean.
D) False
Normal distribution is a continuous probability distribution.
