Abacteria colony triples every 90 minutes. if the colony contains 10 bacteria at noon, how many bacteria are present at 6 p. m.?

the answer is 3/5

step-by-step explanation:

first divide 24 divided by 8 because that is the least common multiple

then divide 40 by 8

then you will get 3/5.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

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: i believe the answer is e

step-by-step explanation: