Mr. mole left his burrow that lies 7 77 meters below the ground and started digging his way deeper into the ground, descending at a constant rate. after 6 66 minutes, he was 1 6 1616 meters below the ground. let a ( t ) a(t)a, left parenthesis, t, right parenthesis denote mr. mole's altitude relative to the ground a aa (measured in meters) as a function of time t tt (measured in minutes).

a

explanation:

step-by-step explanation:

coldest temperature they recorded add me europa2433

europa2433

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

it is true

step-by-step explanation:

all the combinations add up i used   calculator