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
Butoxors [25]
3 years ago
11

The number of bacteria growing in an incubation culture increases with time according to n left parenthesis t right parenthesis

equals 2 comma 400 left parenthesis 5 right parenthesis superscript t baseline comma where t is time in days. after how many days will the number of bacteria in the culture be 60 comma 000​?
Mathematics
1 answer:
Anon25 [30]3 years ago
5 0
For this case we have the following function:
 n (t) = 2400 * (5) ^ t 
 For n (t) = 60000 we have:
 60000 = 2400 * (5) ^ t
 We clear the value of t.
 For this we use the logarithm:
 (5) ^ t = 60000/2400
 log5 ((5) ^ t) = log5 (60000/2400)
 t = log5 (60000/2400)
 t = 2 days
 Answer:
 
the number of bacteria in the culture will be 60 comma 000 after:
 
t = 2 days
You might be interested in
There are three consecutive even integers. If twice the first integer added to the second is 268,244, find all three integers.
r-ruslan [8.4K]

Answer:

89414,89416,89418

Step-by-step explanation:

Let n bet the positive integer and then 2n is an even integer because multiplying n with 2 makes it an even integer.

Now, 2n+2, 2n+4 are the next integers.

Therefore, three consecutive integers are: 2n, 2n+2, 2n+4.

It is given that twice the first integer added to the second is 268,244 that means:

2(2n)+(2n+2)=268244

4n+2n+2=268244

6n=268242

n=44707

Therefore, three consecutive integers are:

2n=89414, 2n+2=89416, 2n+4=89418

8 0
3 years ago
QUADRATIC EQUATION â€" WORD PROBLEMS
dusya [7]

Answer: -7, 12

Step-by-step explanation:

a+b = 5

a*b = -84

a = 5-b

(5-b)*b = -84

-b^2 + 5b + 84 = 0

(-b - 7)(b + 12) = 0

The roots are -7 and 12.

I'm not sure what â€" stands for

4 0
3 years ago
A 150 pound woman would recieve 24 grams of a certain medicine. How many grams should a 120 pound woman receive?​
eduard

Answer:

This is matter of ratio!

42/150 = x/120. It's 33.6 grams :D

Please Mark Brainliest!!

6 0
3 years ago
Pam has taken 4 tests. She scored an 82, 94, 89 and 92. What would she need to score on her 5th test to have a mean of 90?
zavuch27 [327]

Answer:

93

Step-by-step explanation:

5*90 = 450

82+94+89+92 = 357

so

450-357 = 93

hope this helped :)

5 0
3 years ago
Convert 780 cubic feet into gallons round answer to the nearest whole number
Allushta [10]

Answer: 5,835 gallons

6 0
3 years ago
Other questions:
  • From a survey of coworkers you find that 32​% of 150 have already received this​ year's flu vaccine. An approximate 98​% confide
    15·1 answer
  • Rewrite using the distributive property -9(y+5)
    14·2 answers
  • Select ALL the measures of volume.
    8·1 answer
  • Linda purchased a prepaid phone card for $30. Long distance calls cost 13 cents a minute using this card. Linda used her card on
    7·1 answer
  • What is the substitution of -6x-8y=-20 and x+6y=-6
    8·2 answers
  • Jordan ran 2/3 of a mile. Jackson
    11·1 answer
  • A number, a variable, or a product of a number and one or more variables
    11·1 answer
  • 2<br> _ y + 3 =15 What is y<br> 3
    6·1 answer
  • HELP :)
    14·1 answer
  • Find the area of the shaded region
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!