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2 years ago

If 4 notebooks and 3 packages of pens cost $7.43 and

Mathematics

1 answer:

SashulF [63]2 years ago

6 0

Answer:

i believe its one of these!

A. $0.89 B.$0.79 C. $1.29

Step-by-step explanation:

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How many ways can you get to the end, only being able to go down or left, and having to avoid the green thing?

kirill [66]

I got 21, I give up.

6 0

2 years ago

The average density of the material in intergalactic space is approximately 2.5 × 10–27 kg/m3. what is the volume of a lead samp

Lesechka [4]

Answer:

e. $1.8\times 10^{-6}m^3$

Step-by-step explanation:

It is given that,

The density of intergalactic space material is $2.5 \times 10^{-27}$ kg per cubic meter.

And the volume of intergalactic space material is $8.0\times 10^{24} m^3$

So the mass of that much intergalactic space material is,

$m= \rho\times v$ , where 'm' is the mass, and 'v' is the volume.

Putting the values we get,

$m=2.5 \times 10^{-27}\times 8.0 \times 10^{24}$

$m=20\times 10^{(-27+24)}=20\times 10^{-3} kg$

It is also given that the mass of lead is the same as the mass of the intergalactic space material. Therefore, the mass of lead is $20 \times 10^{-3}=2 \times 10^{-2}kg$

So the volume of lead is,

$v=\frac{m}{\rho} =\frac{2 \times 10^{-2}}{11300} = 0.00000177 m^3$

$v=1.77 \times 10^{-6}=1.8\times 10^{-6}m^3$

So the volume of lead is $v=1.8\times 10^{-6}m^3$ .

3 0

3 years ago

Judy Garland Electronics operate on a net-profile rate of 20% on its printer cables. If the markup is $8.95 and the overhead is

Ratling [72]

Answer:

The selling price is $79.53 .

Step-by-step explanation:

Formula

$Profit\ percentage = \frac{Profit\times 100}{Cost\ price}$

Let us assume that the cost price be x .

As given

Judy Garland Electronics operate on a net-profile rate of 20% on its printer cables.

If the markup is $8.95 and the overhead is $4.31 .

Selling price = Cost price + Markup price + Overhead price

Putting all the values in the above

= x + 8.95 + 4.31

= x + 13.26

Profit = Selling price - Cost price

= x + 13.26 - x

= 13.26

Putting all the values in the above

$20 = \frac{13.26\times 100}{x}$

$x = \frac{13.26\times 100}{20}$

$x = \frac{1326\times 100}{20\times 100}$

$x = \frac{1326}{20}$

x = $ 66.3

Thus

Selling price = x + 13.26

= 66.3 + 13.26

= $ 79.53

Therefore the selling price is $79.53 .

6 0

2 years ago

Is it 1 solution, no solution or infinite solution? <br> -28 = -7(3x + 4) + 21

prohojiy [21]

x = 1 because -7(3x + 4) must be -49 so 3x + 4 must me 7 so x = 1

5 0

3 years ago

The length of a rectangle is 6 feet and the width is 3 feet. Find the perimeter I

Anarel [89]

So for the perimeter, there will be 2 of each side. 3(2)+6(2)= 18.
The perimeter is 18 feet.

4 0

3 years ago