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
Karo-lina-s [1.5K]
3 years ago
9

A cell triples every 20 minutes. If there is 2 cells at noon, how many cells will there be at 4 p.m?

Mathematics
2 answers:
lyudmila [28]3 years ago
7 0
24 because 20 minutes in a hr so 4 hrs that would be 4 times 3 and you get 12 times 2 becase two cells and you get 24 
Alinara [238K]3 years ago
7 0
The correct answer is 72 hope this helps 
You might be interested in
Math sucks please help!!!!​
jolli1 [7]

Answer:

the answer is A 30' 28' 10"

you have to subtract the " and add the '

an angle must always be at least 1 so you have to add 1 to the second '

hope this helps

may i get brainliest please? :)

5 0
4 years ago
Read 2 more answers
What fraction would represent the ratio of the cost
Stolb23 [73]
To write 3000 as a fraction you have to write 3000 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
3000 = 3000/1 = 30000/10

And finally we have:
3000 as a fraction equals 30000/10
3 0
3 years ago
The amount of time it takes p people to paint d doors varies directly with the number of doors and inversely with the number of
Talja [164]

Step-by-step explanation:

time ∝ number of door 1

time . ∝ 1/number of people. 2

compare equation 1 and 2

time . ∝ number of door / number of people

put k as constant

time = k number of door / number of people. 3

time =2. people=4 door = 10

putting in equation 3

2 = k (10)/(4)

2×4/10 = k

8/10 =k

4/5 =k

putting in equation 3

time= 4/5 number of door / number of people

now time =5 door= 25 people=?

5=4/5 (5)/ (number of people)

number of people =4/5 ×25/5

number of people= 4

4 0
3 years ago
Read 2 more answers
Cheese sticks that were previously priced at 5 for $1 are now four for $1 find the percent decrease in the number of cheese stic
8_murik_8 [283]
Well, if you bought 10, it would be $2, but due to the decreasage, if you bought 8 it would be $2. The prrcantage decrease should be 20%.
7 0
4 years ago
Find S15 for the geometric series 72 + 12 + 2 + +…
Sedbober [7]
S_{15}=72+12+\cdots+\dfrac1{181398528}+\dfrac1{1088391168}
S_{15}=72\left(\dfrac16\right)^0+72\left(\dfrac16\right)^1+\cdots+72\left(\dfrac16\right)^{13}+72\left(\dfrac16\right)^{14}
S_{15}=72\displaystyle\sum_{i=1}^{15}\left(\frac16\right)^{i-1}

\dfrac16S_{15}=72\displaystyle\sum_{i=1}^{15}\left(\frac16\right)^i

\implies S_{15}-\dfrac16S_{15}=72\displaystyle\sum_{i=1}^{15}\bigg(\left(\dfrac16\right)^{i-1}-\left(\dfrac16\right)^i\bigg)
\dfrac56S_{15}=72\bigg(\left(1-\dfrac16\right)+\left(\dfrac16-\dfrac1{6^2}\right)+\cdots+\left(\dfrac1{6^{13}}-\dfrac1{6^{14}}\right)+\left(\dfrac1{6^{14}}-\dfrac1{6^{15}}\right)\bigg)
\dfrac56S_{15}=72\left(1-\dfrac1{6^{15}}\right)
S_{15}=\dfrac{432}5\times\dfrac{6^{15}-1}{6^{15}}=86.4
6 0
3 years ago
Other questions:
  • I need extreme help and asap
    5·1 answer
  • According to the Federal Communications Commission, 70% of all U.S. households have vcrs. In a random sample of 15 households, w
    10·1 answer
  • tony had 13 bills in his wallet. they were all fives or tens. the total amount of money in his wallet was $90. How many five dol
    9·1 answer
  • PLEASE HELP THANK U
    14·1 answer
  • What is the sum of 3 12 48 192 49,152?
    5·2 answers
  • Which statement is true?
    5·1 answer
  • Whats 1.83333 in a fraction
    10·1 answer
  • At a zoo in a butterfly enclosure, 5 drops of nectar is sufficient for 2 butterflies. How many butterflies could be fed with 59
    7·2 answers
  • Solve for the value of y.<br> (4y+7)<br> (3y+5)
    5·1 answer
  • Please do answer: <br><br>Simplify the expression---5x-2y + 3x + 2y<br><br>(100 points)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!