Tuesday

September 2, 2014

September 2, 2014

Posted by **Erin** on Thursday, December 6, 2012 at 8:22pm.

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!!!

- Math -
**Steve**, Thursday, December 6, 2012 at 11:29pmif 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.

- Math -
**Kate**, Friday, December 7, 2012 at 6:43amThank you for your help!

**Answer this Question**

**Related Questions**

word problem - A motor boat took 4 hours to make a downstream trip with a ...

math - a motorboat takes 4 hours to travel 256miles going up stream. the return ...

math - The speed of a stream is 6 mph. If a boat travels 52 miles downstream in ...

Intermediate Algebra Word Problem - A river's current is 4mph. A boat travels 48...

Physics - A boat sets off perpendicular to the bank, to cross a river width of ...

Math - A boat, which moves at 18 mph in still water, travels 14 miles downstream...

Math - A boat travels 45 miles upstream in 5h. The boat travels the same ...

math - can someone please help me, Rob is going to college in Oklahoma which is ...

math urgent - a motorboat takes 4 hrs to travel 256 miles going upstream. the ...

Algebra - 15. A boat travels 30 miles upstream in 4 hours. The trip downstream ...