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Leni [432]
3 years ago
10

$3.50 nail polish marked up to $8.75

Mathematics
2 answers:
vredina [299]3 years ago
5 0
Just add them

$3.50 + $8.75= $12.25

Hope this helps
ANTONII [103]3 years ago
5 0

Answer:

It acualy 150% markup just pointing that out

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Mark runs to catch a ball. Explain how the structure of muscle tissue helps him perform this function
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Answer:

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Step-by-step explanation:

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3 years ago
If the slope of a line is -1 and two points on the line are (-9, 3) and (-10, r), what is the value of r?
ANEK [815]

Answer:

r=4

Step-by-step explanation:

We know that the slope of the line is -1.

We also know that the line passes through (-9, 3) and (-10, r).

We want to find the value of r.

First, let's figure out the equation of our line. We can use the point-slope form:

y-y_1=m(x-x_1)

Where m is the slope and (x₁, y₁) is a point.

So, let's substitute -1 for m. Since we know the point (-9, 3), let's use this for (x₁, y₁).

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Simplify:

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Distribute:

y-3=-x-9

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It passes through (-10, r) and we want to find the value of r. So, let's substitute -10 for x and r for y, since -10 is our x and r is our y. So:

r=-(-10)-6

Evaluate for r. Distribute:

r=10-6

Subtract:

r=4

So, the value of r is 4.

And we're done!

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3 years ago
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This way, b1 = gradient of the line while b0 = y-intercept.
4 0
3 years ago
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