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galben [10]
3 years ago
5

The original price of a pair of shoes is $42. The sale price 20% off the orginal price. Sales tax of 7% is added to the sale pri

ce. What is the final cost of the pair of shoes? Roundto the nearest cent​
Mathematics
2 answers:
m_a_m_a [10]3 years ago
5 0

Answer:

$8.40 is the amount to be subtracted from the $42.00. If you multiply 20% (.20) by $42.00 you get $8.40. To get your final price subtract $8.40 from $42.00 to get you final answer. I hope that helps.

Step-by-step explanation:

weqwewe [10]3 years ago
4 0

Answer:

$35.95

Step-by-step explanation:

Since 20% is taken off, that means the sale price is 80% of the original price

42 x . 8 = 33.6

Now, we have to add the sales tax to the new price, 7%

33.6 x 1.07 = 35.952

Another-but longer-way to add sales tax is this:

33.6 x .07 = 2.352

2.352 + 33.6 = 35.952

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Answer:

A

Step-by-step explanation:

They are basically wanting the value of x.

These are 2 secant lines drawn. Secant Line is a line that intersects the circle at 2 points.

To solve this, we have to use secant-secant theorem.

Secant-Secant Power Theorem tells us that if 2 secant lines are drawn from external point (here, E) to a circle, then, product of measure of one secant's external part and total secant is equal to other secants external part and whole secant.

In algebra, that is:

(x+1)(x+1+11)=(x+4)(x+4+1)

Let's multiply and find the value of x:

(x+1)(x+1+11)=(x+4)(x+4+1)\\(x+1)(x+12)=(x+4)(x+5)\\x^2 + 13x + 12=x^2+9x+20\\13x+12=9x+20\\13x - 9x = 20 - 12\\4x = 8\\x = 2

Hence, the correct answer choice is A

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3 years ago
What is the approximate value of the square root of 8 to the nearest tenth?
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Square Root to the Nearest Tenth
A B
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What is 85% of 21?<br> I need to know for school because we're doing this project.
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Step-by-step explanation:

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7 0
3 years ago
A pair of shoes usually sell for $63. If the shoes are 40% off, and a sale tax of 7% is allied to discount cost, what is the tot
faust18 [17]

Answer:

$42

Step-by-step explanation:

40% of $63 is $25.2

$63 - $25.2 = $37.8

How much your paying without tax 37.8

7% of $63 is $4.41.

$37.8 + $4.41 = $42.21

Rounded 42.21 = 42

Im not 100% sure about the rounding but I hope this helps!

6 0
3 years ago
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