Please help. A man drives for a while at 40mph. Realizing that he is running late he increases speed to 62 mph and completes at 395 mile trip in 8 hours. How long does he drive at 40mph? It asks me to use two equations in two variables to solve the problem.

Question

mathstudent55 · Answer

Let's say he drove distance d at 40 mph.

mathstudent55 · Answer

The total distance he drove was 395 miles.
Using d, how much distance did he drive at 62 mph?

anonymous · Answer

do you want me to add 40 and 65 together?

mathstudent55 · Answer

No. 40 mph and 62 mph are average speeds. You can't add them together.

mathstudent55 · Answer

I'll help you understand my question with a drawing.
See below

anonymous · Answer

okie dokie

mathstudent55 · Answer

I'm just dealing with distance now.
|dw:1412624108539:dw|

mathstudent55 · Answer

He drove a total of 395 miles.

mathstudent55 · Answer

|dw:1412624163974:dw|