Loren is running in a long distance race. She is able to keep a steady pace of 10 feet per second.
Loren's Race
Distance (feet)
1 2 3 4 5 6 7 8 9 10
Time (seconds)
Which line on the graph represents how many feet she runs over time?

6.5

step-by-step explanation:

you said it was in the question

~courtney

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.