What is the solution to the system of equations below?
2x+3y=17
3x+6y=30
a. (-7,24)
b. (3,4)
c. (4,3)
d. (24,-7)

The answer is C

Step-by-step explanation:

Use the method of elimination

First rearrange the first equation to look like the second

Next add the two equations together eliminating the y term.

There's only one answer with x = 4 so you're done. To go further, substitute x = 4 into the second equation and solve for y

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