Beatrice wanted to solve the system of equations 4x - 3y = 9
by elimination.
(3x + 2y = 11
To eliminate the y-terms, Beatrice could multiply the first equation by
and the second equation by and add equations.

14

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.

is the anwser b. (-13)?