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explain how to tell if a point is a solution for a system of equations.

Explanation:

When you put the solution values into each equation, the equation becomes a true statement. If all equations become true statements, the point is a solution to the system.

For example, consider the system of equations ...

The point (x, y) = (5, 1) is proposed as the solution. When we put those values into the equations, we get ...

  5 + 1 = 6 . . . . . true

  5 - 1 = 4 . . . . . .true

(x, y) = (5, 1) is the solution to this system of equations. (Since it is a system of two independent linear equations in an equal number of unknowns, we know there is only one solution.)

kjgfcvbjkl

step-by-step explanation:

sdfghjkl; vbnm,

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m