A steamboat travels upstream at a speed of 5 miles per hour. Later, the steamboat travels downstream at a speed of 9 miles per hour. Choose tthe system of equations that can be solved to find the speed of the steamboat, x, and the speed of the current, y.

the answers c

idk

step-by-step explanation:

faster, im not sure why but i know it is faster

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.