Algebra

posted by .

13. A boat cruises downstream for 2 hours before heading back. It takes 3.5 hours going upstream to get back. If the speed of the stream is 8 mph, what is the speed of the boat in still water?:

a. 14.7 mph
b. 19.6 mph
c. 24.8 mph
d. 29.3 mph

  • Algebra -

    See if you can explain my equation to yourself

    3.5(x-8) = 2(x+8) then solve it, I got d)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Help...More Math Help!!!...Please!

    A kayaker paddled 2 hours with a 6 mph current in a river. The return trip against the same current took 3 hours. Find the speed the kayaker would make in still water. The speed is 6 mph slower going upstream and 6 mph faster going …
  2. math

    A boat cruises downstream for 2 hours before heading back. It takes 3.5 hours going upstream to get back. If the speed of the stream is 8 mph, what is the speed of the boat in still water?
  3. math (speed)

    A boat cruises downstream for 2 hours before heading back. It takes 3.5 hours going upstream to get back. If the speed of the stream is 8 mph, what is the speed of the boat in still water?
  4. Algebra

    What system of equations do I use to solve the following question?
  5. Math

    A boat travels 1 km upstream and 1 km back. The time for the round trip is 4 hours. The speed of the stream is 5 km/hr. What is the speed of the boat in still water?
  6. math

    A boat travels 8km upstream and back in 2 hours. If the current flows at a constant speed of 3km/h, Find the speed of the boat in still water.(when the boat goes upstream, it speed reduces by 3km/h, and when going downstream, its speed …
  7. maths

     A boat goes 12 km upstream and 40 km downstream in 8 hours. It can go 16 km upstream and 32 km downstream is the same time. Find the speed of the boat in still water and the speed of the stream.
  8. maths

    A boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours it goes 40 km upstream and 55 km downstream. Determine the speed of the stream and that of boat in still water
  9. Algebra

    You travel with a boat 90 km downstream with the current in 6 hours and back upstream in 10 hours. Find the speed of the stream and the speed of the boat in still water, assuming that the motion is uniform.
  10. math

    A boat travels from one port A to port B, travelling 126 km, upstream (against the current) at a uniform speed, and the trip takes 6 hours.  On the way back (downstream), the trip only takes 4.5 hours. Set up and solve a system of …

More Similar Questions