Question

How do you set this up?
Solve the system using substitution:
A boat travels 18 miles downstream in 1.5 hrs. It then takes the boat 3 hrs. to travel upstream the same distance. Find the speed of the boat in still water and the speed of the current.

Thanks you!!!

Answers

if the boat's speed is b, and the current is c,

distance = time * speed

1.5(b+c) = 18
3(b-c) = 18

now go solve 'em.
Thank you for your help!

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