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maw [93]
3 years ago
13

There is 4.8% sales tax on all clothing items purchased. Danielle wants to buy a shirt, which costs $18.95. Danielle figures tha

t if she has $20 she will have enough to buy the shirt. After adding in sales tax, is $20 a reasonable amount for Danielle to bring?
Mathematics
2 answers:
Yuki888 [10]3 years ago
7 0

Answer:

Yes

Step-by-step explanation:

There is 4.8% sales tax on all clothing items purchased. Danielle wants to buy a shirt, which costs $18.95. Danielle figures that if she has $20 she will have enough to buy the shirt. After adding in sales tax, $20 IS a reasonable amount for Danielle to bring.

Total = 100%

100% + 4.8% sales tax = 104.8%

104.8% ÷ 100 = 1.048

$18.95 (cost of the shirt) ⋅ 1.048 = $19.86

$19.86 < $20.00

Therefore, Danielle has enough money to buy the shirt.

inysia [295]3 years ago
5 0

Answer:

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

Step-by-step explanation:

we know that

The total amount is equal to the price of the shirt plus the sales tax

we have that

100\%+4.8\%=104.8\%=104.8/100=1.048

Multiply 1.048 by the cost of the shirt

\$18.95(1.048)=\$19.86

Compare

\$19.86 < \$20

therefore

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

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The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniq
antoniya [11.8K]

Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

The types of t-test used are;

a) One-sample t-test

b) Two-sample t-test

c) Paired Sample t-test

Therefore, a two-sample t-test is most appropriate.

3 0
2 years ago
mauricio estimates that the first module of the project could be completed in as few as 15 days or could take as many as 25 days
4vir4ik [10]

Answer:

<em>Most likely time, </em>according to PERT (Program evaluation and review technique).

Step-by-step explanation:

PERT is "a statistical tool used in <em>project management" (Program evaluation and review technique (2020), </em>in Wikipedia), and it is commonly used with CPM <em>(Critical Path Method)</em> to manage projects.

Inside PERT, there are different defined times to accomplished an activity in a project, that is:

  • An <em>optimistic time</em> or minimum time required to accomplished an activity, i.e., if everything goes better than normal, the activity is accomplished before expected.
  • A <em>pessimistic time, </em>a time quite the opposite to optimistic time.
  • A <em>most likely time</em>, or a time required to accomplished an activity if everything goes as expected or normally.
  • An <em>expected time</em>, an statistical estimation.

Considering the question, we have that the <em>time</em> when "the first module of the project could be completed":

  • "[...] in as few as 15 days"  is the <em>optimistic time</em>.
  • "[...] or could take as many as 25 days" is the <em>pessimistic time</em>.
  • "[...] but most likely will require 20 days" is the <em>most likely time</em>.

As a result, the <em>20-day estimate</em> is called the <em>most likely time</em> in the context of the PERT/CPM techniques.

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3 years ago
Should i multiple 35×5 or48×28
natali 33 [55]
You should multiply 35•5
6 0
3 years ago
Find the common difference of the sequence shown 1/6, 1/4, 1/3
Damm [24]

1/4 - 1/6 = (6-4)/24 = 2/24 = 1/12
1/3 - 1/4 = (4-3)/12 = 1/12



7 0
3 years ago
Read 2 more answers
Evaluate the following if k=0.5, n=-3, and p=-2: K+n(p^2)​
ivann1987 [24]

Answer:

-11.5

Step-by-step explanation:

K + n( {p}^{2} ) \\  \\ plug \: K = 0.5, \: n =  - 3, \: p =  - 2 \\  \\ K + n( {p}^{2} )  \\  \\  = 0.5 + ( - 3) \{ {( - 2)}^{2}  \} \\  \\  = 0.5 - 3 \{ 4 \} \\  \\  = 0.5 - 12 \\  \\  =  - 11.5

5 0
3 years ago
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