I'm stuck on a question from the IXL, HH.1 Trigonometric ratios. I squared the 5 and 12, and then I subtracted 144 from 25 and got 119, then I square rooted that and I ended up with 10.908 as the missing number. Is this correct? If it's not then can someone explain to me the correct answer?

answer:   y=2x-3

step-by-step explanation:

step-by-step explanation:

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.