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IRINA_888 [86]
3 years ago
10

$2.95 notebooks; 5% tax

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0
Turn 5% into a decimal which is 0.05, then multiply by 2.95 = 0.1475
round it off, which is 0.15
so $0.15 is the tax and if ur looking for the total price then add $2.95 to $0.15
agasfer [191]3 years ago
6 0

Answer:

cost with tax would be $3.10

Step-by-step explanation:

The price of the notebooks = $2.95

Tax rate = 5%

Tax = 5% × 2.95

      =  \frac{5}{100} × 2.95

      = 0.05 × 2.95

      = 0.1475 ≈ $0.15

Total cost of the note book = $2.95 + $0.15

                                              = $3.10

The tax on the price of notebook would be $0.15 and the total cost of the notebook would be $3.10.

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For the function f(x) = x + 7, what is the ordered pair for the point on the graph when x = 2b?
zalisa [80]

Answer:

The ordered pair is the point (2b,2b+7)

Step-by-step explanation:

we have

f(x)=x+7

For x=2b

Substitute the value of x in the function

so

f(2b)=2b+7

therefore

The ordered pair is the point (2b,2b+7)

6 0
3 years ago
Read 2 more answers
Please help!!
aleksley [76]
The answer is 120 \pi
8 0
4 years ago
Read 2 more answers
The distribution of income tax refunds follow an approximate normal distribution with a mean of $7010 and a standard deviation o
Andrej [43]

Answer:

A refund must be above $7,139 before it is audited.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 7010, standard deviation = 43.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

The empirical rule is symmetric, which means that the lowest (100-99.7)/2 = 0.15% is at least 3 standard deviations below the mean, and the upper 0.15% is at least 3 standard deviations above the mean.

Use the Empirical Rule to determine approximately above what dollar value must a refund be before it is audited.

3 standard deviations above the mean, so:

7010 + 3*43 = 7139.

A refund must be above $7,139 before it is audited.

5 0
3 years ago
You have combined different polygons to create a polyhedron to approximate a sphere. The sum of all the faces of the polyhedron
aalyn [17]

Since the polyhedron is about 78.5 m², the radius of the sphere is 2.5 m

Since the sum of the faces of the polyhefron equals the surface area of the sphere, we find its surface area.

<h3>What is the surface area of sphere?</h3>

The surface area of sphere is given by A = 4πr² where r = radius of sphere

<h3>Radius of the sphere</h3>

Making r subject of the formula, we have

r = √(A/4π)

Given that he sum of all the faces of the polyhedron is about 78.5 square meters, this is equal to the surface area of the sphere.

So, A = 78.5 m²

Substituting this into the equation for r, we have

r = √(A/4π)

r = √(78.5 m²/4π)

r = √(19.625 m²/π)

= √(6.246 m²)

= 2.499 m

≅ 2.5 m

So, the radius of the sphere is 2.5 m

Learn more about radius of sphere here:

brainly.com/question/13458041

#SPJ1

4 0
2 years ago
Simplify.
otez555 [7]
The answer to the question is C.
6 0
3 years ago
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