Solve the system of equations.
5x - 4y = -10
y=2x-5
x=
y=

9514 1404 393

  (x, y) = (10, 15)

Step-by-step explanation:

The second equation gives an expression for y that can be substituted into the first equation.

  5x -4(2x -5) = -10

  -3x +20 = -10 . . . . . simplify

  30 = 3x . . . . . . . . . . add 3x+10

  10 = x . . . . . . . divide by 3

  y = 2(10) -5 = 15

The solution is (x, y) = (10, 15).

after simplifying it i got: -36.25 as my answer. hope that !

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: