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2 years ago

Valarie ordered 6 birthday stickers , each costing the same price. If she spent $18, ow much did she spend on each sticker ?

Mathematics

2 answers:

TiliK225 [7]2 years ago

6 0

Answer:

She spent $3 on each sticker

Step-by-step explanation:

$18/6 birthday stickers

=$3 on each sticker

miss Akunina [59]2 years ago

3 0

Answer:

Step-by-step explanation:

if you take 18 divided by 6 you get three and thats how you do it

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At a middle school, 3 out of every 4 students ride a bus to school. There are 600 students at the school. How many students ride

frozen [14]

Answer:

450?

Step-by-step explanation:

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4 years ago

ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are

anygoal [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

$\frac{x}{y}=\frac{5}{3}$

see the model in the attached figure N 1

$y=\frac{3}{5}x$

$y=0.60x$

This is the equation of a linear direct variation

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see the model in the attached figure N 2

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3 years ago

A byte consists of 8 bits. A kilobyte is 2^10 bytes. How many bits are in a kilobyte?

Furkat [3]

Answer:

8,192 bits

Step-by-step explanation:

1. Determine how many bytes are in a kilobyte.

To do this, we simply need to get 2 to the tenth power (2 * 2 * 2 * 2 * 2 *2 * 2 * 2 * 2 * 2), which ends up being 1,024 bytes in one kilobyte.

2. Determine how many bits are in 1,024 bytes.

Since 1 byte = 8 bits, all we have to do is multiply 1,024 bytes by 8 bits, which leaves us with 8,192 bits.

Answer: 1 kilobyte = 8,192 bits

8 0

3 years ago

The parallelogram shown below has an area of 84 units squared find the missing length

Ann [662]

Answer: I belive the answer would be 21 if it is 84 all you would have to do is divide it by the 4 sides and you get 21.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

During the 2013 regular NBA season, DeAndre Jordan of the Los Angeles Clippers had the highest field goal completion rate in the

melomori [17]

Answer:

a) The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

Let X the random variable of interest, on this case we know that:

$X \sim Binom(n=80, p=0.613)$

b) $\mu = n*p = 80*0.613= 49.04$

$\sigma = \sqrt{np(1-p)}= \sqrt{80*0.613*(1-0.613)}= 4.356$

c) For this case we can use the following excel code:

"=BINOM.DIST(60,80,0.613,FALSE)"

And we got 0.00355

d) $P(X>50) 1-P(X \leq 50)$

And we can use the following excel code:

"=1-BINOM.DIST(50,80,0.613,TRUE)"

And we got 0.3718

Step-by-step explanation:

Assuming the following questions:

a) What is the probability distirbution for X?

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

Let X the random variable of interest, on this case we know that:

$X \sim Binom(n=80, p=0.613)$

b) Using formula calculate the mean and standard deviation of X

By properties we have:

$\mu = n*p = 80*0.613= 49.04$

$\sigma = \sqrt{np(1-p)}= \sqrt{80*0.613*(1-0.613)}= 4.356$

c) Use your calculator to find the probability that DeAndre scored with 60 of these shots

For this case we can use the following excel code:

"=BINOM.DIST(60,80,0.613,FALSE)"

And we got 0.00355

d) Find the probability that DeAndre scores with more than 50 of these shots

We want this probability:

$P(X>50) 1-P(X \leq 50)$

And we can use the following excel code:

"=1-BINOM.DIST(50,80,0.613,TRUE)"

And we got 0.3718

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3 years ago