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Ivan
3 years ago
15

HELP PLEASE!!!!!✊- 15 pts. If there is an 8% tax on a $20 shirt was is the tax amount?

Mathematics
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

The tax amount will be $1.60

Step-by-step explanation:

<u>Step 1:  Find the tax amount</u>

$20 * %8

20 * 0.08

<em>$1.60</em>

<em />

Answer:  The tax amount will be $1.60

Korolek [52]3 years ago
3 0

Answer:

the tax amount would be $1.6

Step-by-step explanation:

the question says that If there is an 8% tax on a $20 shirt was is the tax amount.To solve this kind of question, let's go by the parameters given

percentage tax = 8%

cost price of the shirt = $20

now we will calculate the 8 percent(8%)  on $20

8% of the tax on $20

=8/100 ×20

= 0.08 × 20

=$1.6

Therefore the tax amount would be $1.6

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nordsb [41]

Answer: c. –1 and .1587

Step-by-step explanation:

As per given , we have

Null hypothesis : H_0 : p= 0.35

Alternative hypothesis :  H_1 : p< 0.35

Since Alternative hypothesis is left-tailed ,so the test must be a left tailed test .

Z -Test statistic for proportion = z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

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\hat{p} = sample proportions

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Let x be the number of successes.

For n= 40 and x= 11

\hat{p}=\dfrac{x}{n}=\dfrac{11}{40}=0.275

Then ,  z=\dfrac{0.275-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{40}}}

z=\dfrac{-0.075}{\sqrt{0.0056875}}

z=\dfrac{-0.075}{0.075415515645}

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By using z-table ,

P-value for left-tailed test = P(z<-1)= 1-P(z<1)    [∵ P(Z<-z)= 1-P(Z<z) ]

= 1-0.8413

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Hence, the -score and P-value are  <u>–1 and 0.1587</u> .

So the correct option is c. –1 and .1587

8 0
3 years ago
12 people can be of 30 chairs in eight hours how many chairs candy people build in 100 hours
ruslelena [56]
Hello!

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ANSWER:

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Step-by-step explanation:

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