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3 years ago

Need help on 16 please!!!!!!!

Mathematics

2 answers:

Amanda [17]3 years ago

6 0

16,000 because you should start with dividing 40,000 and 20

vladimir2022 [97]3 years ago

5 0

16,000 because you divide 40,000 by 20 and you get 2000 so you multiple by 8 the number of students that are out less then 5 days a year

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about 47% of the 15152 samples researchers found were bacteria. what percent of the samples were not bacteria?

timofeeve [1]

47% of them were bacteria, which means 53% of them were not bacteria.

47+53=100 or 100-47=53

I hope this helps :)

3 0

3 years ago

Somebody help me with this 30 points ☺️

brilliants [131]

Answer:

4r- 21

Step-by-step explanation:

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2 years ago

What is the probability someone will randomly select a thin crust pepperoni pizza with tea to drink

Svetach [21]

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3 years ago

If n is a positive integer, how many 5-tuples of integers from 1 through n can be formed in which the elements of the 5-tuple ar

erma4kov [3.2K]

Answer:

$\frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{120}$

Step-by-step explanation:

Given

5 tuples implies that:

$n = 5$

$(h,i,j,k,m)$ implies that:

$r = 5$

Required

How many 5-tuples of integers $(h, i, j, k,m)$ are there such that $n\ge h\ge i\ge j\ge k\ge m\ge 1$

From the question, the order of the integers h, i, j, k and m does not matter. This implies that, we make use of combination to solve this problem.

Also considering that repetition is allowed: This implies that, a number can be repeated in more than 1 location

So, there are n + 4 items to make selection from

The selection becomes:

$^{n}C_r => ^{n + 4}C_5$

$^{n + 4}C_5 = \frac{(n+4)!}{(n+4-5)!5!}$

$^{n + 4}C_5 = \frac{(n+4)!}{(n-1)!5!}$

Expand the numerator

$^{n + 4}C_5 = \frac{(n+4)!(n+3)*(n+2)*(n+1)*n*(n-1)!}{(n-1)!5!}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{5!}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{5*4*3*2*1}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{120}$

Solved

6 0

2 years ago

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Inessa [10]

Answer:

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Step-by-step explfdsanation:

dthe awknfd;f

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3 years ago