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3 years ago

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:

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

$P(Z > -1.914 ) = 0.97219$

$P(X >300 ) = 0.97219$

8 0

3 years ago