A colony of bacteria triples in population every 24 hours. There were 20 bacteria
initially. The variable y gives the number
of bacteria after x days. What is the
coefficient, a, for the exponential equation
of the form y=a• b*that describes the
situation?
Record your answer and fill in the
bubbles below. Be sure to use the
correct place value.
loo

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

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

wait nvm i know the correct answer now its 100%   81 square feet

~batmans wife dun dun

365

step-by-step explanation: