Which values of x and y will satisfy y = 5x and 12x + 9y = 60?Select one of the options below as your answer: A. x = 1, y = 19 B. x = 35, y = C. x = , y = D. x = , y = E. x = 19, y =

Question

Which values of x and y will satisfy y = 5x and 12x + 9y = 60?Select one of the options below as your answer: A. x = 1, y = 19  B. x = 35, y =   C. x =  , y =   D. x =  , y =   E. x = 19, y =

anonymous · Answer

y = 5x
12x +9y = 60 --> 4x + 3y = 20

sub in 5x for y
4x + 3(5x) = 20
4x + 15x = 20
19x = 20
x = 20/19

y = 5x
y = 5*20/19
y = 100/19

this is not one of your choices, is it ?