Answer:
6.7
Step-by-step explanation:
10% of 30000
10/100 x 30000
0.10 x 30000
=3000
In order to find how long you have to divide 20k with 3k
20000/3000 = 6.66666667
Round it up and you get 6.7
Answer:
The 8th term of the sequence is 896/2187.
Step-by-step explanation:
We want to find the 8th term of a geometric sequence whose common ratio is 2/3 and whose first term is 7.
We can write a direct formula. Recall that the direct formula of a geometric sequence is given by:
![\displaystyle x_{n} = a\left(r\right)^{n-1}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x_%7Bn%7D%20%3D%20a%5Cleft%28r%5Cright%29%5E%7Bn-1%7D)
Where <em>a</em> is the initial term and <em>r</em> is the common ratio.
Substitute:
![\displaystyle x_{n} = 7\left(\frac{2}{3}\right)^{n-1}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x_%7Bn%7D%20%3D%207%5Cleft%28%5Cfrac%7B2%7D%7B3%7D%5Cright%29%5E%7Bn-1%7D)
To find the 8th term, let <em>n</em> = 8. Substitute and evaluate:
![\displaystyle \begin{aligned} x_{8} &= 7\left(\frac{2}{3}\right)^{(8) - 1} \\ \\ &= 7\left(\frac{2}{3}\right)^{7} \\ \\ &= 7\left(\frac{128}{2187}\right) \\ \\ &= \frac{896}{2187} = 0.4096...\end{aligned}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Baligned%7D%20x_%7B8%7D%20%26%3D%207%5Cleft%28%5Cfrac%7B2%7D%7B3%7D%5Cright%29%5E%7B%288%29%20-%201%7D%20%5C%5C%20%5C%5C%20%26%3D%207%5Cleft%28%5Cfrac%7B2%7D%7B3%7D%5Cright%29%5E%7B7%7D%20%5C%5C%20%5C%5C%20%26%3D%207%5Cleft%28%5Cfrac%7B128%7D%7B2187%7D%5Cright%29%20%5C%5C%20%5C%5C%20%26%3D%20%5Cfrac%7B896%7D%7B2187%7D%20%3D%200.4096...%5Cend%7Baligned%7D)
In conclusion, the 8th term of the sequence is 896/2187.
Y=16x+7
the x represents the number of memberships the 16 represents the cost of a membership and the 7 represents the additional cost.
Answer:
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