Answer:
![$(10, 0)$](https://tex.z-dn.net/?f=%24%2810%2C%200%29%24)
Step-by-step explanation:
Let's try all the options:
![$\left \{ {{2x + y = 20} \atop {4x-2y = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B2x%20%2B%20y%20%3D%2020%7D%20%5Catop%20%7B4x-2y%20%3D%2040%7D%20%5Cright.%20%24)
Considering
:
![$\left \{ {{2(10) + 0 = 20} \atop {4(10)-2(0) = 40} \right. $\\](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B2%2810%29%20%2B%200%20%3D%2020%7D%20%5Catop%20%7B4%2810%29-2%280%29%20%3D%2040%7D%20%5Cright.%20%24%5C%5C)
![$\left \{ {{20 + 0 = 20} \atop {40-0 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B20%20%2B%200%20%3D%2020%7D%20%5Catop%20%7B40-0%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{20= 20} \atop {40 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B20%3D%2020%7D%20%5Catop%20%7B40%20%3D%2040%7D%20%5Cright.%20%24)
Considering
:
![$\left \{ {{2(0) + 10 = 20} \atop {4(0)-2(10) = 40} \right. $\\](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B2%280%29%20%2B%2010%20%3D%2020%7D%20%5Catop%20%7B4%280%29-2%2810%29%20%3D%2040%7D%20%5Cright.%20%24%5C%5C)
![$\left \{ {{0 + 10 = 20} \atop {0-20 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B0%20%2B%2010%20%3D%2020%7D%20%5Catop%20%7B0-20%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10= 20} \atop {-20 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%3D%2020%7D%20%5Catop%20%7B-20%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10\neq 20} \atop {-20 \neq 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%5Cneq%20%2020%7D%20%5Catop%20%7B-20%20%5Cneq%2040%7D%20%5Cright.%20%24)
Considering
:
![$\left \{ {{2(4) + 2 = 20} \atop {4(4)-2(2) = 40} \right. $\\](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B2%284%29%20%2B%202%20%3D%2020%7D%20%5Catop%20%7B4%284%29-2%282%29%20%3D%2040%7D%20%5Cright.%20%24%5C%5C)
![$\left \{ {{8 + 2 = 20} \atop {8-4 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B8%20%2B%202%20%3D%2020%7D%20%5Catop%20%7B8-4%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10= 20} \atop {4 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%3D%2020%7D%20%5Catop%20%7B4%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10\neq 20} \atop {4 \neq 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%5Cneq%20%2020%7D%20%5Catop%20%7B4%20%5Cneq%20%2040%7D%20%5Cright.%20%24)
Considering
:
![$\left \{ {{2(10) -10 = 20} \atop {4(10)-2(-10) = 40} \right. $\\](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B2%2810%29%20-10%20%3D%2020%7D%20%5Catop%20%7B4%2810%29-2%28-10%29%20%3D%2040%7D%20%5Cright.%20%24%5C%5C)
![$\left \{ {{20 -10 = 20} \atop {40+20 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B20%20-10%20%3D%2020%7D%20%5Catop%20%7B40%2B20%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10= 20} \atop {60 = 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%3D%2020%7D%20%5Catop%20%7B60%20%3D%2040%7D%20%5Cright.%20%24)
![$\left \{ {{10\neq 20} \atop {60 \neq 40} \right. $](https://tex.z-dn.net/?f=%24%5Cleft%20%5C%7B%20%7B%7B10%5Cneq%20%2020%7D%20%5Catop%20%7B60%20%5Cneq%20%2040%7D%20%5Cright.%20%24)
Answer:
1, 6, 16, 36, 72
Step-by-step explanation:
16 × 2
= 32 (+4)
= 36
36 × 2
= 72 (+4)
= 76
Answer:
She can make 2 bags of 4, and she will have 3 bananas left.
Step-by-step explanation:
4 + 4 + 4 = 12; that is 1 banana too many since she only has 11 bananas.
She has 11 bananas, so she has 4 + 4 + 3 = 11.
She can make 2 bags of 4, and she will have 3 bananas left.
Answer:
2/5
Step-by-step explanation: