Answer:how
Step-by-step explanation:what is this it’s too hard I’m sorry man
Answer:
2 3 4 7
Step-by-step explanation:
I PROMISE YOU THIS IS RIGHT!!!
DONT LISTEN TO THE OTHERS
2(x-5)=20
Divide both sides by 2 (division of property equality)
x - 5 = 10
Add 5 to both sides (addition of property equality)
x = 15
Answer
x = 15 is the solution
Answer:
3e-5 kilometers
Step-by-step explanation:
Step 1: Convert 3 centimeter into a kilometer
3e-5
Answer: 3e-5 kilometers
Answer:
![5A + 4P = 10](https://tex.z-dn.net/?f=5A%20%2B%204P%20%3D%2010)
![5A + 5P = 11](https://tex.z-dn.net/?f=5A%20%2B%205P%20%3D%2011)
1 apple costs $1.2
1 pear costs $1
Step-by-step explanation:
Represent Apples with A and Pears with P
For the person in my front, the expression is:
![5A + 4P = 10](https://tex.z-dn.net/?f=5A%20%2B%204P%20%3D%2010)
For me, the expression is
![5A + 5P = 11](https://tex.z-dn.net/?f=5A%20%2B%205P%20%3D%2011)
Hence, the system of equation is:
![5A + 4P = 10](https://tex.z-dn.net/?f=5A%20%2B%204P%20%3D%2010)
![5A + 5P = 11](https://tex.z-dn.net/?f=5A%20%2B%205P%20%3D%2011)
Solving for the values of A and P.
Substract equation (2) from (1)
![5A - 5A + 4P - 5P = 10 - 11](https://tex.z-dn.net/?f=5A%20-%205A%20%2B%204P%20-%205P%20%3D%2010%20-%2011)
![-P = -1](https://tex.z-dn.net/?f=-P%20%3D%20-1)
![P = 1](https://tex.z-dn.net/?f=P%20%3D%201)
<em>Hence, 1 pear costs $1</em>
Substitute 1 for P in ![5A + 4P = 10](https://tex.z-dn.net/?f=5A%20%2B%204P%20%3D%2010)
![5A + 4 * 1 = 10](https://tex.z-dn.net/?f=5A%20%2B%204%20%2A%201%20%3D%2010)
![5A + 4 = 10](https://tex.z-dn.net/?f=5A%20%2B%204%20%3D%2010)
![5A = 10 - 4](https://tex.z-dn.net/?f=5A%20%3D%2010%20-%204)
![5A = 6](https://tex.z-dn.net/?f=5A%20%3D%206)
![A = \frac{6}{5}](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B6%7D%7B5%7D)
![A = \$1.2](https://tex.z-dn.net/?f=A%20%3D%20%5C%241.2)
<em>Hence, 1 apple costs $1.2</em>