At a shop on times square three "" i love ny"" t- shirts sell every 10 minutes for $ 19.95 each . every 45 minutes one yankee's hat sells for $ 24.95 . the shop is open from 9 am to 9 pm every day .so, the question is how many t-shirts are sold in a week

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

false

step-by-step explanation: