SOLUTION: tony sewart left the california speedyway in in fontana heading to pheonix international raceway traveling at a speed of 60mph. two hours later, dale jr. left from the same point,

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Question 198613: tony sewart left the california speedyway in in fontana heading to pheonix international raceway traveling at a speed of 60mph. two hours later, dale jr. left from the same point, driving the same route, at a speed of 75 mph. how long did it take for dale jr. to catch up with tony?
Answer by arallie(162) About Me  (Show Source):
You can put this solution on YOUR website!
Here we go:
i=60x%2B120 and d=75x where x=hours
If i=d at hour "x" then
75x=60x%2B120
Simplify and solve
15x=120
x=8
8 hours
Anymore questions feel free to ask me.
Anthony Allie
arallie@gmail.com
http://arallie.webs.com/tutoring.htm