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Archy [21]
3 years ago
7

Pls help this is due by midnight

Mathematics
2 answers:
Lynna [10]3 years ago
6 0

Answer:

Cost of four DVD= 36.7, but due to 25% discount it cost 27.57. Then add 7.75 taxes and he payed 29.71. Answer is 29.71

Step-by-step explanation:

MrRa [10]3 years ago
3 0

Answer:

$27.71

Step-by-step explanation:

Price of 1 DVD: $9.19

Price of 4 DVDs: 4 * $9.19 = $36.76

Discount: 25%

Now we find 25% of $36.76.

25% of $36.76 =

= 0.25 * $36.76

= $9.19

The 25% discount amounts to $9.19. We now subtract $9.19 from $36.76 to find the discounted price.

$36.76 - $9.19 = $27.57

Now we need to apply the 7.75% tax to $27.57.

7.75% of $27.57 =

= 0.0775 * $27.57

= $2.14

The sales tax is $2.14.

Now we add the sales tax amount to the total discounted price.

$27.57 + $2.14 = $29.71

Answer: $27.71

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Answer: 95% confidence interval would be (0.344,0.456).

Step-by-step explanation:

Since we have given that

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x = 118

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So, margin of error would be

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so, 95% confidence interval would be

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Hence, 95% confidence interval would be (0.344,0.456).

6 0
4 years ago
Read 2 more answers
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3 years ago
Bob parked his car at the local garage. If his car stayed for one hour, he would have been charged $6.00. If he stayed for 4 hou
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Answer:

Initial charge is $2.5

Hourly charge is $3.5/hr

Equation is y=3.5x+2.5

Step-by-step explanation:

Getting slope

Get fixed charge

Get equation

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The slope will be given by dividing change in y axis to change in x axis. This will be (16.5-6)/(4-1)=3.5

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Hourly charge is $3.5/hr

Equation is y=3.5x+2.5

6 0
3 years ago
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The answer is D.

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5 0
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