Math
solve the following system of equations: (5 points)
x − 2y = 5
2x − 4y = 10
infinitely many solutions
no solutions
(0, 0)
(5, 10)

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling