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
Daniel [21]
3 years ago
7

One week you tell 3 of your friends a secret. The next week, each of them tells 3 people the secret and the next week each of th

ose people tell 3 more people. So the first week, 3 new people know the secret, the second week 9 new people know the secret, the third week 27 new people know the secret, etc. How many people find out the secret on the 4th week?
Mathematics
2 answers:
brilliants [131]3 years ago
6 0

Answer:81

Step-by-step explanation:

Given

In first week 3 new people Knows the secret and

in second week 9 new people new the secret

and in the third week 27 new people knows the secret

so we can see that each week new people are increasing as power of 3

i.e. 3^n

where n= no of week

For n=1, it is 3

for n=2,it is 9

for n=3,it is 27

for n=4,it is 81

Ulleksa [173]3 years ago
4 0
81 people  will know the secret by week 4
You might be interested in
Cheyanne is saving for a car. The amount she has saved for the car, f(x), can be represented by the function f(x) = 65x + 750, w
lisabon 2012 [21]
She initially had $700 saved before working
6 0
3 years ago
Write an algebraic expression for “12 less than the quotient of 12 and a number z.”
algol13

\frac{12}{n}   - 12

4 0
3 years ago
What is 45/1000 reduced?
Anna35 [415]
9/200. divide 45 and 1000 both by 5 to reduce it.
8 0
3 years ago
HELP MATH THIS IS DUE SOON
Oxana [17]

Answer:

600

Step-by-step explanation:

36 times 18=648 but u need to add o the nearest hundred

4 0
2 years ago
Read 2 more answers
Solve this system of linear equation the x- and y-value with a comma. 18x+13y=60 6x+2y=6
OLEGan [10]

Answer:

18x + 13y = 60

6x + 2y = 6 ---> 6x = -2y +6 ---> 18x = -6y+18

Substitution

(-6y +18)+13y =60

       -18           -18

--------------------------

7y = 42 so y=6

Then, 6x + 2(6) =6, which you will get x = -1

(-1, 6)

8 0
3 years ago
Read 2 more answers
Other questions:
  • a plane can fly 7 miles per minute. the plane will fly 8 trips, and each trip is 810 miles. how many hours will the plane fly? s
    9·1 answer
  • Why did populist party want to have a silver standard instead of a gold standard?
    9·1 answer
  • What is 3 2/7 x 2 4/5 (Answer with a mixed number in simplest form) Thankyou!!
    11·2 answers
  • Who will go out with me?<br> a:William <br> b:Oscar <br> c:oliver
    12·2 answers
  • How to use scale factor to find the missing dimension
    8·1 answer
  • Solve each equation using an equation mat or inverse operation. <br><br>P+1/4=2 2/3
    7·1 answer
  • Divide 6/13 by 6/12 .<br> A. 9/16<br> B. 1/12<br> C. 12/13<br> D. 13/12
    10·2 answers
  • Evaluate y4 for y = -2.<br> А)<br> -8<br> B)<br> 8<br> 16<br> D)<br> -16
    8·1 answer
  • 20 points!! will mark Brainliest if correct!!<br> plz help I need this done today!!
    11·1 answer
  • After being exposed to an electromagnetic shrinking machine, Joe's height decreased by 120m over 4 seconds. His height decreased
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!