A 2-column table with 4 rows. Column 1 is labeled Miles with entries question mark, 70, 210, 280. Column 2 is labeled Hours with entries 1, 2, 6, 8. What is the unit rate of the number of miles driven per number of hours of driving?

10cm

step-by-step explanation:

ik

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

answer: 72: 111

step-by-step explanation: