Wich is greater. 2 5/6 hours or 2.8 hours

2 5/6 hours is greater than 2.8 hours

Step-by-step explanation:

when u change 2 5/6 into a decimal, it is 2.83333333

which is still greater than 2.80 or 2.8

Hope this helped! :D

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18