Thursday

July 31, 2014

July 31, 2014

Posted by **Jennifer** on Wednesday, February 11, 2009 at 8:57am.

A) What does the variable stand for?

x stands for the speed of the boat.

B) Write the equation.

24/x - 4 = 48/x + 4

C) Solve.

24/x - 4 = 48/x + 4

24(x + 4) = 48(x - 4)

24x + 96 = 48x - 192

288/24 = 24x/24

mph 12 = x

D) Write the answer in a complete sentence.

The speed of the boat will be 12 miles per hour.

Is this correct?

- Intermediate Algebra Word Problem -
**drwls**, Wednesday, February 11, 2009 at 9:11amYes, it is correct. The upstream speed relative to land (8 mph) is half the downstream speed (16 mph), as required.

- Intermediate Algebra Word Problem -
**Jennifer**, Wednesday, February 11, 2009 at 10:10amThanks

**Related Questions**

math - River Current A boat can travel 36 miles upstream in the same time that ...

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

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

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

algebra - 36 Upstream, downstream. Junior’s boat will go 15 miles per hour in ...

Math - How do you set this up? Solve the system using substitution: A boat ...

algebra - A boat can travel 114 miles upstream in the same time that it can ...

algebra - Show a complete solution. Upstream, downstream. Junior’s boat will go ...

Intermediate Algebra - in still water, a paddle boat averages 10 miles per hour...

Intermediate Algebra - The speed of a boat in still water is 29mph. if the boat ...