Dec 1, 2009 #1 K Kim Member Joined May 11, 2008 Messages 587 Reaction score 0 Points 16 if the cars speed is 20 miles faster then the truck, find the cars speed, and the trucks speed.
Dec 1, 2009 #2 R Rohn Member Joined Nov 14, 2008 Messages 35 Reaction score 0 Points 6 let speed of truck be x Time traveled by truck and car is same 180/(x + 20) = 120 / x 180x = 120(x + 120) 180x = 120x + 2400 180x - 120x = 2400 60x = 2400 x = 40 Speed of truck is 40 Speed of car ios 40+20 = 60 Rohn
let speed of truck be x Time traveled by truck and car is same 180/(x + 20) = 120 / x 180x = 120(x + 120) 180x = 120x + 2400 180x - 120x = 2400 60x = 2400 x = 40 Speed of truck is 40 Speed of car ios 40+20 = 60 Rohn