SOLUTION: Carl and Fred started driving from the same point, Carl driving due east and Fred traveling due west. The rate at which Carl drove was twice that of Fred. After four hours, they

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Question 95871: Carl and Fred started driving from the same point, Carl driving due east and Fred traveling due west. The rate at which Carl drove was twice that of Fred. After four hours, they were 600 miles apart. Find the rate of each.
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(f+2f)4=600
3f*4=600
12f=600
f=600/12
f=50 mph for Fred's speed.
c*2*50=100 mph for Carl.
proof
(50+100)4=600
150*4=600
600=600