Tom and david get their haircut at the barber shop on saturdays tom gets his haircut every four weeks david gets his haircut every six weeks one saturday tom and dave got their haircut at the same time when will tom and david get their haircut the same day again

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

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13