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sergiy2304 [10]
3 years ago
10

What is the sales tax on a $8.50 purchase if the sales-tax rate is 6.5% (6 1/2 %)?

Mathematics
2 answers:
konstantin123 [22]3 years ago
5 0
The answer is $0.55

$8.50 is 100%.
x is 6.5%

8.50 : 100% = x : 6.5%
x = 8.50 : 100% * 6.5%
x = 0.5525
x ≈ $0.55
zvonat [6]3 years ago
4 0
$9.05 would be the amount with he sales tax
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Solving for a variable in an equation means, we are changing the subject of formula of the equation.

The equation of r is: \mathbf{r = \sqrt{\frac{3V}{\pi h}}}

The equation is given as:

\mathbf{V = \frac 13 \pi r^2h}

We start by multiplying both sides by 3

\mathbf{V \times 3= \frac 13 \pi r^2h \times 3}

Rewrite as:

\mathbf{3V= \pi r^2h}

Divide both sides by \mathbf{\pi h}

\mathbf{\frac{3V}{\pi h}= \frac{\pi r^2h}{\pi h}}

Cancel out common factors

\mathbf{\frac{3V}{\pi h}= r^2}

Take square roots of both sides

\mathbf{\sqrt{\frac{3V}{\pi h}}= \sqrt{r^2}}

Evaluate the right-hand sides

\mathbf{\sqrt{\frac{3V}{\pi h}}= r}

Make r the subject

\mathbf{r = \sqrt{\frac{3V}{\pi h}}}

Hence, the resulting equating for r is:

\mathbf{r = \sqrt{\frac{3V}{\pi h}}}

Read more about the subject of formulas at:

brainly.com/question/21866313

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3 years ago
What is the length of segment QV ?, NO LINKS.
soldier1979 [14.2K]

Answer:

44 units

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5 0
2 years ago
Kensington charges $20 per hour, h, teaching music lessons. Last year, Kensington earned $37,705, including tips, t. Given this
maw [93]

Answer:B-t=37705-20h

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3 years ago
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Half of a sphere is stacked on top of a cone. They both share a circular base. The radius of the circle is 6 millimeters. The he
kherson [118]

Answer:

312π mm3

Step-by-step explanation: yes

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3 years ago
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Hey pls help !!! worth 25 points
amm1812

Start with the point-slope form: y-y_1 = m(x-x_1).

Then you substitue in the slope and coordinates from the point:

    y-5 = 2(x-(-7))

You don't do a lot of clean up to the form, with the exception of turning "minus negative 7" into "plus 7".

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Thar be yer answer!

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2 years ago
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