Answer: 2:4
Step-by-step explanation:
Answer:
-4 and -2
Step-by-step explanation:
f(x) = 1 means y = 1
When y = 1, x could be either -4 or -2 so the values of x when y = 1 are -4 and -2
Answer:
Step-by-step explanation:
6x > x + 20
5x > 20
x > 4
Answer:
(3, - 1)
Step-by-step explanation:
5x - 4y = -11
2x + 3y = -9
Multiply the top equation by 2 and the bottom equation by - 5 to cancel out the x's.
10x - 8y = - 22
- 10x - 15y = 45
Cancel out x's.
-8y = - 22
- 15y = 45
Add like terms.
- 23y = 23
Can't have a negative variable to flip them.
-23 = 23y
Divide.
y = - 1
Input y into one of the equations and solve for x.
2x + 3(-1) = -9
Simplify.
2x -3 = -9
Cancel out -3 by adding 3.
2x = -6
Divide.
x - -3
Answer:
Sophia gets 7,150
Step-by-step explanation:
