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TiliK225 [7]
3 years ago
7

Joris pays 8% sales tax on a backpack that costs 68 dollars. How much does the sales tax add to the purchase price?helpppppp

Mathematics
2 answers:
miv72 [106K]3 years ago
5 0

Answer:

$5.44

Step-by-step explanation:

SSSSS [86.1K]3 years ago
5 0
The sales tax adds $5.44. The total would be $73.44

To get this answer, you just multiply 68 x 0.08, which equals $5.44
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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia and older subjects before treatment 14
RideAnS [48]

Answer:

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given data mean of the Population = 104 minutes

Given sample size 'n' =14

Mean of the sample(x⁻)  = 95.9 minutes

Given Standard deviation  = 24.4 minutes

<u><em>Step(ii)</em></u>:-

99% confidence interval estimate of the mean weight time for a population is determined by

(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.01} \frac{S.D}{\sqrt{n} })

(95.9 - 2.576\frac{24.4}{\sqrt{14} } , 95.9+2.576\frac{24.4}{\sqrt{14} })

On calculation , we get

(95.9 -16.79 , 95.9 +16.79)

(79.11 , 112.69)

<u><em>Conclusion:</em></u>-

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

7 0
3 years ago
THE AREA OF A LAKE ON THE MAP IS 12CM SQUARE CALCULATE THE ACTRUAL AREA OF THE LAKE IN KM
den301095 [7]

Answer:

if 1cm is for 1km there are 12km

Step-by-step explanation:

it can depend on the size of the map but if there is a scale which shows how many km per cm then multiply by 12

6 0
2 years ago
What is the twelfth term in the sequence 13, 26, 39, …?
Gwar [14]

Answer:

  • 156

Step-by-step explanation:

<u>Given the sequence </u>

  • 13, 26, 39, …

<u>We see it is an AP with</u>

  • The first term a = 13
  • Common difference d = 13 ( as 26 - 13 = 39 - 26 = 13)

<u>The 12th term is:</u>

  • a₁₂ = a + 11d = 13 + 11*13 = 156
7 0
3 years ago
Read 2 more answers
Which unit would you need fewer of to measure a tree?
NemiM [27]

Answer:

<em />

  • <em>You would need fewer the unit</em><em><u> </u></em><u>kilometer (km) </u><em>to measure a tree.</em>

Explanation:

In the internet you can find that the greatest height of a tree is aobut 115 meters.

Thus, you would never expect to find a tree measuring kilometers or miles.

If you used kilometers as unit, the measure of the tallest tree woul be about 0.115 km (115 meter divided by 1,000).

Most of the trees meausre in the range of 1 to 20 meters. That would be 0.001 km to 0.020 km.

Thus, kilometer is not a unit that you would need to measure a tree. You'd rather use centimeters, when the tree is small, and meters for most of the trees. You may also use feet, since 1 meter is about 3.28 feet, or even yards, since 1 yard is equal to 3 feet.

4 0
3 years ago
Look at the following sequence. 51, 5.1, 0.51, 0.051, . . .
lukranit [14]
Hello there.
The sequence is being divided by ten
51/10= 5.1
5.1/10 = 0.51
0.51/10 = 0.051,
and so on.
You can also reverse the following sequence and multiply it by ten.
3 0
3 years ago
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