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gtnhenbr [62]
3 years ago
13

There are 8 pencils in a package. How many packages will be needed for 76 children if each child gets 10 pencils ?

Mathematics
2 answers:
Archy [21]3 years ago
7 0
I got this same question
Nata [24]3 years ago
5 0

Answer:

read the question over

Step-by-step explanation:

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Simplify the expression to a + bi form
stira [4]

Answer:

I got 18.20003388838383838

Step-by-step explanation:

4 0
3 years ago
Myles had 185 songs in his music library. He then purchased an additional 30 songs. To the nearest percent, what was the percent
Firdavs [7]
Hey!

Myles had 185 songs. He purchased 30 extra songs.

30 ÷ 185 = 0.162 = 16.2%

Answer ⇒ 16.2%

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
A cylinder has a diameter of 40 feet and a height of 32 feet. What is the surface area of the cylinder? Express the answer in
mafiozo [28]

Answer:

6524.51 ft^2

Step-by-step explanation:

The surface area of a cylinder is given as;

SA = 2\pi rh + 2\pi r^2

where r = radius

h = height

The cylinder has a height of 32 feet and a diameter of 40 feet. This means that the radius is:

40 / 2 = 20 feet

The surface area is therefore:

SA = (2*\pi* 20 * 32) + (2*\pi *20^2)\\\\SA = 4021.24 + 2513.27\\\\SA = 6524.51 ft^2

The surface area of the cylinder is 6524.51 ft^2.

5 0
3 years ago
Which letters label the locations of the opposite numbers - 1 and 1?
andreev551 [17]

Answer:

D

Step-by-step explanation:

C and D are the location for -1 and 1

....-2  -1  0  1  2 ...

3 0
3 years ago
An Airliner has a capacity for 300 passengers. If the company overbook a flight with 320 passengers, What is the probability tha
TEA [102]

Answer:

The probability is   P(X  >300 ) = 0.97219

Step-by-step explanation:

From the question we are told that

 The capacity of  an Airliner  is  k =  300 passengers

 The sample size n =  320 passengers

  The probability the a randomly selected passenger shows up on to the airport

    p = 0.96

Generally the mean is mathematically represented as

    \mu  =  n*  p

  => \mu  =  320 *  0.96

    => \mu  = 307.2

Generally the standard deviation is  

    \sigma =  \sqrt{n *  p *  (1 -p ) }

=>  \sigma =  \sqrt{320  *  0.96 *  (1 -0.96 ) }

=> \sigma =3.50

Applying Normal approximation of binomial distribution

Generally the probability that there will not be enough seats to accommodate all passengers is mathematically represented as

  P(X  > k ) =  P( \frac{ X -\mu }{\sigma }  >  \frac{k - \mu}{\sigma } )

Here \frac{ X -\mu }{\sigma }  =Z (The \ standardized \  value \  of  \ X )

=>P(X  >300 ) =  P(Z >  \frac{300 - 307.2}{3.50} )

Now applying  continuity correction we have

    P(X  >300 ) =  P(Z >  \frac{[300+0.5] - 307.2}{3.50} )    

=>    P(X  >300 ) =  P(Z >  \frac{[300.5] - 307.2}{3.50} )

=>    P(X  >300 ) =  P(Z >  -1.914 )

From the z-table  

    P(Z >  -1.914 ) =  0.97219

So

    P(X  >300 ) = 0.97219

8 0
3 years ago
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