Answer: He planted 670 acres of corn.
Step-by-step explanation:
Let x be the number of acres of corn and y be the number of acres wheat Farmer planted.
According to the given information, we have the following system of equations:
![x+y=1180--------------(1)\\\\ 270x+135y=249750-----------------(1)](https://tex.z-dn.net/?f=x%2By%3D1180--------------%281%29%5C%5C%5C%5C%20270x%2B135y%3D249750-----------------%281%29)
Divide equation (2) by 135 , we get
![2x+y=1850---------------(3)](https://tex.z-dn.net/?f=2x%2By%3D1850---------------%283%29)
Subtract eqn (1) from (3), we get
![x=670](https://tex.z-dn.net/?f=x%3D670)
Put value of x in (1), we get
![670+y=1180\\\\ y=1180-670=510](https://tex.z-dn.net/?f=670%2By%3D1180%5C%5C%5C%5C%20y%3D1180-670%3D510)
Hence, he planted 670 acres of corn.
Answer:
\[a_{n}=6n-4\]
Step-by-step explanation:
a8=a1+(8-1)*6
44=a1+42
a1=44-42=2
\[a_{n}=2+(n-1)*6\]
\[a_{n}=6 n-4\]
Answer: 2
Step-by-step explanation:
The answer should be 0.85. 17/20 converted to a decimal is 0.85.