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Zina [86]
3 years ago
5

Backpack is normally $64.99, put on sale it is marked down to $45.49 what percent off is the sale price

Mathematics
1 answer:
pogonyaev3 years ago
8 0

Answer:

The percent off on the sale price is 30%.

Step-by-step explanation:

Marked up price = $64.99

marked down Price = $45.49

Let us assume the off percentage = k%

Now, the Amount off on the sale = Marked up price - Marked down price

                                                        = $64.99 -  $45.49  = $19.5

⇒  k% off on Marked up Price  $64.99 = $19.5

or, \frac{k}{100}  \times 64.99  = 19.5\\\implies k = \frac{19.5 \times 100}{64.99}  = 30

or, k = 30%

Hence, the percent off on the sale price is 30%

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Which operation involving complex numbers requires the use of a conjugate to be carried​ out?
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Answer:

The correct answer will be "Division".

Step-by-step explanation:

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The axis of symmetry for a function in the form f(x) = x2 + 4x - 5 is x = -2. What are the coordinates of the vertex of the
umka2103 [35]

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(- 2, - 9 )

Step-by-step explanation:

The axis of symmetry passes through the vertex of the parabola.

Thus the x- coordinate of the vertex is x = - 2

To find y substitute x = - 2 into f(x)

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8 0
3 years ago
Read 2 more answers
Let A and B be two disjoint events such that P(A) = 0.47 and P(B) = 0.3.<br><br> What is P(A or B)?
Alchen [17]
<h3>Answer:  0.77</h3>

Work Shown:

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P(A or B) = 0.47 + 0.30

P(A or B) = 0.77

Notes:

  • The formula only works if A and B are disjoint, aka mutually exclusive
  • If A and B are not disjoint, then use this formula: P(A or B) = P(A) + P(B) - P(A and B)
6 0
2 years ago
Read 2 more answers
Jorge bought a CD for $11.99. If sales tax was 0.96, how
hammer [34]
I’m pretty sure it’s
$7.05


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i could be completely wrong but that sounds about right!
6 0
3 years ago
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