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
anzhelika [568]
3 years ago
10

Day of a measles outbreak at a school, 8 students were identified to have the measles. Each day for the On the first following t

wo weeks, the number of new cases doubled from those identified with the disease the day prior How many students are identified to have measles in all at the end of the 6th day of the outbreak
A. 386
B.415
C.483
D.504
Mathematics
2 answers:
Mrrafil [7]3 years ago
5 0

Answer:

D. 504

Step-by-step explanation:

Let the number of days = x

Now, the number of students doubles each day for the two weeks with the initial number of students having measles = 8.

So, we have,

Days (x)                  Cases doubled                      Number of Students

1                                       8                                                8

2                                      8 × 2                                         16

3                                      16 × 2                                        32

4                                      32 × 2                                       64

So, we get the geometric series as 8, 16, 32, 64,...... for two weeks.

Then, the common ratio = \frac{16}{8}=\frac{32}{16} = 2

Thus, Number of students = 8\times \frac{(1-2^6)}{1-2}

i.e. Number of students = 8\times \frac{(1-64)}{-1}

i.e. Number of students = 8\times \frac{(-63)}{-1}

i.e. Number of students = 8 × 63 = 504

Hence, the number of students having measles at the end of the 6th day are 504.

raketka [301]3 years ago
4 0

Answer: 504

I know that this is correct because I just took a test with this question and I got 100%.

You might be interested in
Solve the following equation. 3x/7-2=15 (Must be a mixed number)
Elina [12.6K]

Answer:

Mixed Number

39 \frac{2}{3}

4 0
3 years ago
Use the formula P = 2l + 2w. Find the perimeter of a rectangle with a length of 12.9 ft and a width of 19.3 ft.
vovikov84 [41]
The answer is P= 64.4 hope it helped

6 0
3 years ago
an elevator in a skyscraper rises 240 feet in 1/5 minute. What is the elevator's rate in feet per minute?
Nutka1998 [239]

Answer:

1200

Steps to answer the problem:

1/5 of a minute goes in to 1 minute 5 times

5 x 240 = 1200

8 0
2 years ago
Read 2 more answers
Percy solved the equation x2 7x 12 = 12. his work is shown below. is percy correct? explain. 1. (x 3)(x 4) = 12 2. x 3 = 12 or x
stepladder [879]

Percy solved the equation by expanding the expression on the left-hand side, and this is incorrect

<h3>How to determine the true solution?</h3>

The equation is given as:

x^2 + 7x + 12 = 12

The first step in solving the equation is to equate the equation to 0.

i.e.

x^2 + 7x + 12 - 12 = 0

This given

x^2 + 7x = 0

From the question, Percy solved the equation by expanding the expression on the left-hand side

Hence, Percy's solution is incorrect

Read more about equations at:

brainly.com/question/2972832

#SPJ4

6 0
2 years ago
Abigail and Spencer calculate the slope of the line between the points (3,-1) and (5,4) in different ways. Abigail calculates th
ElenaW [278]
Nsnsnskskkakammabvbshshsj
8 0
2 years ago
Other questions:
  • What is a polynomial function in standard form with zeroes 1, 2, -2. and -3
    14·1 answer
  • In our solar system, 6 of the 8 planets have moons. What percentenge of the planets have moons
    15·2 answers
  • 453.59 multiplied by 10 carry out to 4 decimal places
    14·2 answers
  • A school is having a canned food drive. Each class is challenged to collect 220 cans. If there are x classes in the school, whic
    11·2 answers
  • write the first five terms of the sequence defined by the recursive formula an = 2 (an-1)^2, with a1 = 1.
    7·1 answer
  • On a coordinate plane, a curved line labeled f of x with a minimum value of (1.9, negative 5.7) and a maximum value of (0, 2), c
    15·1 answer
  • { .. , -3 , -2 , -1 , 0 , 1 , 2 } finite or infinite​
    10·2 answers
  • Help me out pls for quiz
    6·1 answer
  • Hiiiooo! Can someone please help ❤️
    13·2 answers
  • Consider these scenarios. 1. An elephant weighs 1. 5 × 104 units. 2. A mouse weighs 2. 13 × 10-5 units. 3. A puppy weighs 1. 2 ×
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!