Answer: 15 kilometers per hour
Step-by-step explanation:
put y=0 & find x. call it x1.
put x=0 & find y. call it y1.
define the points (x1, 0) & (0, y1) on a cartesian plane. connect the points with a line to find the interception.
It will be 43,000.00
Hope it helps! :D