Em uma maratona de 42 km, Paulo já havia corrido 30 km quando sentiu um desconforto muscular e resolver parar. A razão entre a distância que ele correu em relação ao percurso total é: a)1/2
b)3/7
c)5/7
d)7/9​

i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation:

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

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: