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ycow [4]
3 years ago
13

The cost to a store for an MP3 player is $60. The selling price is $1.05. A classmate says that the markup is 175% because $105/

$60=1.75 . Is your classmate correct?
Mathematics
1 answer:
Lapatulllka [165]3 years ago
7 0
<span>MP3 player is $60
</span><span>The selling price is $105

</span><span>A classmate says that the markup is 175% because $105/$60=1.75 . Is your classmate correct?

No. IT's not correct

Original price $60
Selling price $105

$105 - $60 = $45

So

45/60 x 100 = 75%

Price is markup 75% from $60 to $105</span>
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For the following pair of lines, identify the system by type.
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If two points on a line are A(10, −3) and B(12, 9), the rise is __________, and the run is __________, so the slope of the line
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========================

If two points on a line are A(10, −3) and B(12, 9), the rise is <u>12</u>, and the run is <u>2</u>, so the slope of the line is <u>6</u>.

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2 years ago
Which graph represents f(x)=6cos(4πx) ?
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Answer:

The graph representing f(x)=6cos(4πx) is shown in the attached file.

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The graph representing f(x)=6cos(4πx) is shown in the attached file.

6 0
3 years ago
The following set of coordinates most specifically represents which figure? (−5, 6), (−1, 8), (3, 6), (−1, 4) (6 points) Paralle
Vladimir [108]

Answer:

Rhombus

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|AB|=\sqrt{20}

The length of AD is

|AD|=\sqrt{(-1--5)^2+(6-4)^2}

|AD|=\sqrt{16+4}

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The length of BC is:

|BC|=\sqrt{(-1-3)^2+(8-6)^2}

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The length of CD is

|CD|=\sqrt{(-1-3)^2+(6-4)^2}

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Since all sides are congruent the quadrilateral could be a rhombus or a square.

Slope of AB=\frac{8-6}{-1--5}=\frac{1}{2}

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Since the slopes of the adjacent sides are not negative reciprocals of each other, the quadrilateral cannot be  a square. It is a rhombus

7 0
3 years ago
Read 2 more answers
I need to know how to find the slope of the line for #2
son4ous [18]
Slope formula : (y2 - y1) / (x2 - x1)
now pick 2 points on ur line...
(1,2)......x1 = 1 and y1 = 2
(3,0)......x2 = 3 and y2 = 0
now sub
slope = (0 - 2) / (3 - 1) = -2/2 = -1 <== ur slope is -1
3 0
3 years ago
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