John should drive to his workplace and back to home. On the way to the workplace it was raining, so he drove at speed of 42mph. On the way back the rain was over so his speed was 54mph. What was John's average speed, for the whole trip? PLEASE ANSWER ASAP!! Thanks!

47.25 mph

Step-by-step explanation:

Represent the total distance traveled as 2x. Average speed= total distance/total time

When going at 42 mph, the time would be x/42 and when going at 54 mph the time would be x/54 to travel x distance. Add x/42 and x/54 together to get 16x/378. Then divide 2x by 16x/378 to get 47.25 mph. Also this is RSM innit?

48 mph

Step-by-step explanation: Add 42mph and 54 mph and you get 96.  To find the average of the two --- divide 96 by 2 and you get 48mph as the average speed for the entire trip.