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Anarel [89]
3 years ago
8

(a) if each of them tells 1 person, and then everybody tells exactly 1 other person, and so on, how long will it take until all

450 students in the school hear the rumor? assume that the rate for telling the next person is 1 hour. that is, initially jack and jill know; after 1 hour, 2 more people know; after 2 hours, 2 more people know, . . . .
Mathematics
1 answer:
luda_lava [24]3 years ago
8 0
For this problem I recommend using the explicit version of the arithmetic sequence formula
an = a1 + (n – 1)d.

The first term is a1, the common difference is d, and the number of terms is n. an is the final number we are looking for.


We shall substitute in the common difference and 2 since every hour 2 more people will know. Also the first term is equal to 2. an is 450 because that's what we are looking for.


the equation looks like 450= 2 + (n – 1)2. Now we evaluate. n = 225. 225 terms will pass, then all 450 students will know the rumor. Each term will equal 1 hour . 225 hours converts to 9 full days and 9 hours. So it will take 9 days and 9 hours for every student to know the rumor at that rate.
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Nathan has 80 us stamps,64 Canadian stamps,and 32 Mexican stamps. He wants to put the same number of stamps on each page. Each p
Feliz [49]

Answer:

The greatest number of stamps that Nathan can put on each page = 16.

Step-by-step explanation:

Given:

Nathan has:

80 US stamps

64 Canadian stamps

32 Mexican stamps

The stamps need to put on a page such that each page has same number of same country stamps on each page.

To find the greatest number of stamps he can put on each page.

Solution:

In order to find the greatest number of stamps Nathan can put on each page, we will find the G.C.F. of the three numbers.

The numbers are:

80,64,32

<em>We will list down the prime factors of each number.</em>

80=2\times 2\times 2\times 2\times 5

64=2\times 2\times 2\times 2\times 2\times 2

32=2\times 2\times2\times 2\times 2

The G.C.F can be given as = 2\times 2\times 2\times 2 = 16

Thus, the greatest number of stamps that Nathan can put on each page = 16.

6 0
3 years ago
PLEASE HELP I GIVE THANKS
VashaNatasha [74]
It is an obtuse triangle because all of the sides are diffrent amount

5 0
3 years ago
Read 2 more answers
A courtyard has three walls with widths
wariber [46]

Using the greatest common factor, it is found that the greatest dimensions each tile can have is of 3 feet.

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

  • The widths of the walls are of <u>27 feet, 18 feet and 30 feet.</u>
  • <u>The tiles must fit the width of each wall</u>, thus, the greatest dimension they can have is the greatest common factor of 27, 18 and 30.

To find their greatest common factor, these numbers must be factored into prime factors simultaneously, that is, only being divided by numbers of which all three are divisible, thus:

27 - 18 - 30|3

9 - 6 - 10

No numbers by which all of 9, 6 and 10 are divisible, thus, gcf(27,18,30) = 3 and the greatest dimensions each tile can have is of 3 feet.

A similar problem is given at brainly.com/question/6032811

8 0
3 years ago
The basic sticker price on Mr. Feldman's new car was $3200, The options he desired cost an additional $1800. What percent of the
Keith_Richards [23]
3200 plus 1800 is 5000.
So find the percentage of 5000 1800 is.
So 36%
6 0
3 years ago
Donald spends a total of $17.43 on peanuts that cost $2.49 per pound. How many pounds of peanuts does he buy?
True [87]

Answer:

He bought 7 pounds of peanuts

Step-by-step explanation:

17.43/2.49=7

4 0
3 years ago
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