1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastova [34]
3 years ago
7

A population of bacteria doubles every 12 hours. Initially, the population of bacteria is 80.

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0
A number of bacteria after 30 hours is 480 bacteria.
The answer is 480 because originally the amount was 80. After 12 hours it doubled to 160. Then after 24 hours have passed, the amount doubled again. So now the amount is 320 bacteria. Then 6 hours passed (half of 12 hours) so then you add half of that amount (160) to 320. 320 plus 160 is 480. So the answer is 480

You might be interested in
Use the substitution method to solve the system of equations. Choose the
luda_lava [24]

Answer:

(2, 22 )

Step-by-step explanation:

Given the 2 equations

y = 7x + 8 → (1)

y = x + 20 → (2)

Substitute y = 7x + 8 into (2)

7x + 8 = x + 20 ( subtract x from both sides )

6x + 8 = 20 ( subtract 8 from both sides )

6x = 12 ( divide both sides by 6 )

x = 2

Substitute x = 2 in (2) for corresponding value of y

y = x + 20 = 2 + 20 = 22

Solution is (2, 22 )

7 0
4 years ago
Write the equation of the line that goes through<br> the points (-3, -2) and (4, 5).
sattari [20]

Find the slope m.

Use the point-slope formula.

Solve for y.

6 0
3 years ago
Find the ratio created when AB is partitioned by C.
Blizzard [7]

Answer:

Step-by-step explanation:

From the picture attached,

Segment AB has been divided into four equal parts.

Let each part measures equal length = 1 unit

Point C is 2 units apart from both the points A and B.

Length of AC = Length of BC = 2 units

Therefore, point C will be the mid point of segment AB.

And ratio of AC and BC = 1:1

AC:BC = 1:1

Similarly, AC:AB = 2:4

                           = 1:2

And BC:AB = 2:4

                   = 1:2

8 0
3 years ago
1+1+2+3+4 is what<br> it says it needs to be 20 characters long
dlinn [17]

Answer:

11

Step-by-step explanation:

how do you know how to read yet not know this

7 0
3 years ago
ASAP PLEASE!!!!<br><br> What is an equation for the line with slope<br> 2/3 and y-intercept 9?
Ainat [17]
Y=2/3x+9 the answer is C
7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me... the perimeter of square WXYZ is 20 units. The coordinates of three of the vertices are W(3,2), X(3,7), and Y(8
    14·1 answer
  • Find slope of 12x+3y=6
    13·2 answers
  • Decimals- do i move the decimal when adding or multiplying
    12·1 answer
  • a,park guide plans the swan boat rides for 40 people.Each boat can carry 6 people at a time. What is the best way to interpret t
    13·2 answers
  • Mindy and Troy combined 9 pieces of the wedding cake .Mindy ate three pieces of cake and Troy had 1/4 of the total cake
    14·2 answers
  • Martin would like to start training to run a Martin the first week he runs a total of 15 miles he would like to run 30% more mil
    12·1 answer
  • Plz help i have 3 mins it for 25 points
    5·2 answers
  • Find the length of the third side. If necessary, write in simplest radical form.<br> 10<br> 5
    9·1 answer
  • Please help! I'll give 50 points!!
    12·1 answer
  • Find the missing probability.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!