5x+2=5x+5
For Bruce, 5 represents the number of boxes, and the 2 represents the number of tiles he used from the box.
For Felicia, 5 represents the 5 boxes she used, and the other 5 is used for the tiles she bought on her own.
Lets use elimination to solve the system of equations. We do this by adding the two equations terms together.
a + b = 5
a - b = 3
(a + a) + (b + (- b)) = (3 + 5)
2a + 0 = 8
We can then solve this new equation for a.
2a = 8
a = 4
After this, we can plug in the value of a into one of the equations and solve for b.
a + b = 5
4 + b = 5
b = 1
You're correct, the answer is 1.
9514 1404 393
Answer:
A) 1 < x < ∞
Step-by-step explanation:
"Increasing" means the graph goes up to the right. This graph is increasing for values of x greater than 1. (x=1 is a minimum. The graph is decreasing toward the minimum on the left of that value, and increasing from the minimum on the right of that value.)
1 < x < ∞
The correct answer is The letter b
