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3 years ago

A DVD priced $17.50 cost $18.81 after tax. What was the percent of sales tax?

1 answer:

6 0

7.48571% because 18.81-17.50 divided by 17.50 times 100 equals 0.0748571 which you then have to multiply by 100 again to get the percent change. So, the answer is 7.48571% sales tax.

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Solve by substitution. Show each step of your work.

zaharov [31]

5x + y = 15

y = -5x + 15

Substituting y= -5x+15 from first equation into second equation:

3x + 2y = 16

3x + 2·(-5x + 15) = 16

3x - 10x + 30 = 16

-7x + 30 = 16

7x = 30 - 16 = 14

x = 2

Substituting x=2 into the first equation:

5x + y = 15

5(2) + y = 15

10 + y = 15

y = 15 - 10

y = 5

So your final answers are x=2 and y=5.

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2 years ago

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If a pair of jeans cost 45 dollars before the sale and the sale is taking 9 dollars off of the original price what was the perce

Dvinal [7]

Answer:

20%

Step-by-step explanation:

A pair of jeans cost $45 before the sale.

The sale is taking $9 off of the original price.

Then

$45 - 100%

$9 - x%

Write a proportion:

$\dfrac{45}{9}=\dfrac{100}{x}$

Cross multiply:

$45\cdot x=9\cdot 100\\ \\45x=900\\ \\x=\dfrac{900}{45}\\ \\x=20\%$

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3 years ago

There are 95 white pieces of paper in a hat along with 5 blue pieces of paper. What is the theoretical probability that a blind-

sp2606 [1]

Answer:

Step-by-step explanation:

Probability is the likelihood of an event taking place.

-Given there are 95 white and 5 blue pieces, the total number of papers is 100.

-The theoretical first attempt probability is equivalent to the number of each paper divided by the total:

$P(blue)= \frac{no \ of \ blue}{total}\\\\=\frac{5}{100}\\\\=0.05$

Hence, the theoretical probability that a blind-folded person draws a blue piece of paper on the first attempt is 0.05 or 5%

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3 years ago

Solve for x: 2x + 4 ≤ 12

ZanzabumX [31]

Hi there, please give me the brandies the answer if I helped. The photo is attached below.

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3 years ago

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mylen [45]

Answer:

QF=gR

F=gR/Q

Step-by-step explanation:

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2 years ago

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