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4 years ago

A silver bracelet has mass of 52.45g and volume of 5cm³ find density of silver braclet

Mathematics

1 answer:

wel4 years ago

3 0

Answer:

10490 kg/m³ or 10.49 g/cm³

Step-by-step explanation:

Density = mass/volume

mass = 52.45g ÷ 1000 = 0.05245kg

Volume = 5 ÷ (100)³ = 5/1000000

Density = 0.05245 ÷ 5/1000000

= 0.05245 × 1000000/5

= 10490 kg/m³

Or, 52.45/5 = 10.49 g/cm³

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What is y= X/2 + 9; x= -12

Lelu [443]

-12/2=-6
y=-6+9
-6+9=3
y=3

4 0

3 years ago

Please help with this question

posledela

Answer:

The maximum revenue will be $R=\$25,000$ at price $p=\$100.$

Step-by-step explanation:

Given:

$R=-2.5p^2+500p$

Find the vertex of the parabola represented by given equation:

$p_v=\dfrac{-b}{2a}=\dfrac{-500}{2\cdot (-2.5)}=\dfrac{500}{5}=100$

When $p=\$100,$ then

$R=-2.5\cdot 100^2+500\cdot 100=-2.5\cdot 10,000+50,000=-25,000+50,000=25,000$

The maximum revenue will be $R=\$25,000$ at price $p=\$100.$

6 0

4 years ago

A rectangle is divided into exactly 20 congruent squares. Then these squares are lined up in a single row extending 36 inches (3

arlik [135]

The area of the rectangle is 64.8 square .inch

<h3>What is a Rectangle ?</h3>

A rectangle is a polygon with four sides , opposite sides are parallel and equal.

It is given that

A rectangle is divided into exactly 20 congruent squares

If they are lined up the Length is 36 inches

Therefore the length of each square or the side of the square = 36/20

= 1.8 inch

The area of the rectangle will be

20* Side of square * Side of square

=20*1.8*1.8

= 64.8 square inch

The area of the rectangle is 64.8 square .inch

To know more about Rectangle

brainly.com/question/15019502

#SPJ1

6 0

2 years ago

A system of identifying call letters uses call letters that begin either with E or W. Some have a total of 2 letters, and others

Klio2033 [76]

Answer:

If repetition is allowed then the different call letters possible are 1404.

If repetition is allowed then the different call letters possible are 1250.

Step-by-step explanation:

The call letter are of either 2 letter or 3 letters.

And for them to be identified they should start with either E or W.

If Repetition is allowed:

Consider the call letters with 2 letter:

Possible number of call letters starting with E : E _

The second place can be filled any of the 26 letters.

Possible number of call letters starting with W : W _

The second place can be filled any of the 26 letters.

Consider the call letters with 3 letter:

Possible number of call letters starting with E : E _ _

The second place and third place can be filled with any of the 26 letters.

Possible number of call letters starting with W : W _ _

The second place and third place can be filled with any of the 26 letters.

Total number of possible letters: 26 + 26 + (26)² + (26)² = 1404

Thus, if repetition is allowed then the different call letters possible are 1404.

If Repetition is not allowed:

Consider the call letters with 2 letter:

Possible number of call letters starting with E : E _

The second place can be filled any of the 25 letters.

Possible number of call letters starting with W : W _

The second place can be filled any of the 25 letters.

Consider the call letters with 3 letter:

Possible number of call letters starting with E : E _ _

The second place can be filled with any of the remaining 25 letters and the third can be filled with the remaining 24 letters.

Possible number of call letters starting with W : W _ _

The second place can be filled with any of the remaining 25 letters and the third can be filled with the remaining 24 letters.

Total number of possible letters: 25 + 25+ (25 × 24) + (26 × 24) = 1250

Thus, if repetition is allowed then the different call letters possible are 1250.

5 0

3 years ago

What do you need to know?

butalik [34]

What do you need to know for what?

7 0

4 years ago

A silver bracelet has mass of 52.45g and volume of 5cm³ find density of silver braclet​

A silver bracelet has mass of 52.45g and volume of 5cm³ find density of silver braclet