Mean is adding all the numbers then dividing the answer you go from the numbers.
3/14
[(I just came, Sorry for not giving a explanation)]
Answer:
13 months
Step-by-step explanation:
m=number of months
30(m)+50
30*13= 390
390+50=440
In mathematics, number sequencing of the same pattern are called progression. There are three types of progression: arithmetic, harmonic and geometric. The pattern in arithmetic is called common difference, while the pattern in geometric is called common ratio. Harmonic progression is just the reciprocal of the arithmetic sequence.
The common ratio is denoted as r. For values of r<1, the sum of the infinite series is equal to
S∞ = A₁/(1-r), where A1 is the first term of the sequence. Substituting A₁=65 and r=1/6:
S∞ = A₁/(1-r) = 65/(1-1/6)
S∞ = 78
It would be 8 + 40 because you multiply the 4 by the 2 and 10
