Answer:
15 days
Step-by-step explanation:
Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.
In 1 day,
- A completes
of all work; - B completes
of all work.
Hence, in 1 day both A and B complete
of all work. A and B working together can do a work in 6 days. Then

Solve this equation:

If
then
that is impossible. So, B needs 15 days to complete the work alone.
Yes, 104.12 is greater than 104.02.
∑ from 1 to infinity of 12(3/5)^(i - 1)
Since the common ratio is less than 1, the series is convegent. [i.e. 3/5 < 1]
Sum to infinity of a geometric series is given by a/(1 - r); where a is the first term, and r is the common ratio.
Sum = 12/(1 - 3/5) = 12/(2/5) = 30.
Answer:
The next term is 54.
Step-by-step explanation:
Look carefully, and you will find that each number increases by 7.
12 + 7 = 19.
19 + 7 = 26.
26 + 7 = 33...
...and so on.
Therefore, the next term is 54 since 47 + 7 = 54.
Hope this helped!
Answer:
x =2, The function g(x) = g(2) = 1