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4 years ago

You buy a new laptop for $299 99. The sales tax is 6%. Whay is the total cost for the laptop including sales tax?

1 answer:

defon4 years ago

8 0

So to find 6% of 299.99, you should multiply it by 0.06%. Therefore you get about 17.99 which is the total tax. Add 299.99(total) and 17.99(tax) together, and you final answer should be around $317.98

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If 150 bars equals 350 hars, and 200 gars equals 25 hars, how many bars is 112.5 hars

lilavasa [31]

Answer:

48.214 bars

Step-by-step explanation:

112.5 hars * (150 bars / 350 hars) = 48.214 bars

6 0

1 year ago

A rectangle or patio has a length of 12 1/2 feet and an area of 103 1/8 feet. What is the width of the patio?

AfilCa [17]

The width of the patio is 8 7/25 feet ( I hope I got that right )

7 0

3 years ago

Although cities encourage carpooling to reduce traffic congestion, most vehicles carry only one person. For example, 64% of vehi

ira [324]

Answer:

a) 0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

b) 0.996 is the probability that more than half of the vehicles carry just one person.

Step-by-step explanation:

We are given the following information:

A) Binomial distribution

We treat vehicle on road with one passenger as a success.

P(success) = 64% = 0.64

Then the number of vehicles follows a binomial distribution, where

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 10

We have to evaluate:

$P(x \geq 6) = P(x =6) +...+ P(x = 10) \\= \binom{10}{6}(0.64)^6(1-0.64)^4 +...+ \binom{10}{10}(0.64)^{10}(1-0.79)^0\\=0.7291$

0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

B) By normal approximation

Sample size, n = 92

p = 0.64

$\mu = np = 92(0.64) = 58.88$

$\sigma = \sqrt{np(1-p)} = \sqrt{92(0.64)(1-0.64)} = 4.60$

We have to evaluate the probability that more than 47 cars carry just one person.

$P(x \geq 47)$

After continuity correction, we will evaluate

$P( x \geq 46.5) = P( z > \displaystyle\frac{46.5 - 58.88}{4.60}) = P(z > -2.6913)$

$= 1 - P(z \leq -2.6913)$

Calculation the value from standard normal z table, we have,

$P(x > 46.5) = 1 - 0.004 = 0.996 = 99.6\%$

0.996 is the probability that more than half out of 92 vehicles carry just one person.

5 0

3 years ago

PLEAAASE HELP ME ON #5 PLEAAASE IM DESPERATE IM RLLY SYRESSSEDDD TAKE 45 PTS

Lina20 [59]

I believe the answer should be x equals 37

4 0

3 years ago

Read 2 more answers

A pencil factory makes 50 cases of pencils in 5 hours.

Oduvanchick [21]

If a pencil factory makes 50 cases of pencils in 5 hours. Let's first find out how many cases are made per hour.

50 ÷ 5 = 10 cases per hour

Now you need to know how long it will take to make 55 cases. Since we already know that it takes 5 hours to make 50 cases. So you need to know how many cases for the extra 5 cases. If it takes 1 hour to make 10 cases, it would only take 1/2 hour to make 5 cases.

So it would take 5 1/2 hours to make 55 cases.

Hope this helps. :)

5 0

3 years ago