Answer:
10 hours
Step-by-step explanation:
320 = 30x + 20
300 = 30x
x = 10
No, 0.4 kilometers and 0.25 kilometers are not more than a kilometer instead, they are 400 meters and 250 meters
Answer:
1. No solution
2. Infinite solutions
Step-by-step explanation:
1. To solve the system, set the equations equal to each other and solve for x.
2x - 5 = 2x + 7
-5 = 7
This is a false statement. This means there is no solution.
2. To solve the system, graph each equation.
y = -3/4 x - 5/2 has a y-intercept -5/2 and slope -3/4.
3x + 4y = -10 converts to y = -3/4x -5/2.
This graphs as the exact same line. This system has infinite solutions.
