Write a system of equations:
x + y = 125
20x + 15y = 2100
Solving:
x = 125 - y
20(125 - y) + 15y = 2100
2500 - 20y + 15y = 2100
2500 - 5y = 2100
-5y = 2100 - 2500
-5y = -400
y=80
x + 80 = 125
x = 125 - 80
x = 45
The first charges 45$ per hour and the second charges 80$ per hour
Answer: x = 1
Step-by-step explanation:
The numbers in the middle below each row tell the difference between the two numbers above it.
So 12 - x = ?
? = 9 + 2
∴ 12 - x = 9 + 2
x = 1
The image attached should help to make it much clearer. Comment with any questions or concerns.
Answer:
48
Step-by-step explanation:
because x is 10 and +6 is x + 6 is 16 so 16×3=48
Answer:
m = -3/5
Step-by-step explanation:
Since the line is going downwards towards the right, it is a negative slope.
We can use the points to solve for the slope.
m = -2 - 1 / 2 - (-3)
m = -2 - 1 / 2 + 3
m = -3/5
Therefore, the slope is -3/5.
