Posted by **Nate** on Wednesday, November 3, 2010 at 10:14pm.

Two cars travel the same distance. The first car travels at a rate of 37 mph and reaches its destination in t hours. The second car travels at a rate of 54 mph and reaches its destination in 3 hours earlier than the first car.

How long does it take for the first car to reach its destination?

Answer in units of hours.

- 11th grade Math -
**PsyDAG**, Thursday, November 4, 2010 at 1:34pm
Distance = rate * time

Let t = time for first car

37t = 54(t-3)

Solve for t.

- 11th grade Math -
**Kye**, Thursday, November 4, 2010 at 11:38pm
37t = 54t-162

-17t = -162

t = 9.52941165

- 11th grade Math -
**Eric Davis**, Friday, November 5, 2010 at 2:10am
find an equation of variation where y varies directly as x,and y=7 when x= 3

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