Kyle is training for a marathon. the equation is y=3x+5.5. how long will it take kyle to be ready to run the entire marathon of 26.5 miles

I'm assuming you would plug in the miles, in this case leaving you with the equation y=3(26.5)+5.5 which equals 85. So i'm assuming your answer would be 85 min.

0 is its x and y coordinate

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