Two missiles are initially 5000 miles apart. they travel along a straight line directly towards one another, one traveling at 2000 miles per hour and the other at 1000 miles per hour. how many miles apart are they 1 minute before impact?

First, you must add the two rates together, since the object are heading together:                                                                                                                                                                            2000 + 1000 = 3000                                                                                                                                                                                    Next, you simply divide that by 60 to find the rate of miles per minute:                                                    
                         3000 / 60 = 50                                                                                                                                                                                                                                  50 miles is going to be your answer since this is the last minute before impact. This means that in another minute, they will travel 50 more miles and collide

Hello!
your answer should be c