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3 years ago

Long divison 8755 by 67

Mathematics

1 answer:

Ivanshal [37]3 years ago

4 0

Answer:

Confused on what your looking for the answer in written form or standard but the answer is : 130.67

Step-by-step explanation:

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In the video, the water level was 15 milliliters before adding the chain, and 20 milliliters after adding the chain. When I weig

mr_godi [17]

Answer:

39.7%

Explanation:

1. First find the density of your chain

Density = mass / volume

Volume = displaced water volume

= Volume of Final level of water - initial level of water

= 20 ml - 15 ml = 5 ml

Mass = 66.7 g

Density = 66.7g / 5 ml = 13.34 g/ml

2. Second, write the denisty of the chain as the weighted average of the densities of the other metals:

Mass of gold × density of gold + mass of other metals × density of other metals, all divided by the mass of the chain.

Calling x the amount of gold, then the amount of other metals is 66.7 - x:

$\dfrac{19.3\cdot x+9.7\cdot (66.7-x)}{66.7}=13.34$

$19.3x+635.66-9.7x=889.778$

$9.6x=254.118\\\\x=26.47$

Then, there are 26.47 grams of gold in 66.7 grams of chain, which yields a percentage of:

(26.47 / 66.7) × 100 = 39.7%

7 0

3 years ago

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local

Dovator [93]

Answer:

Step-by-step explanation:

The equation of a line is given by $y-y_1=m(x-x_1)$

and

slope (m) is given by:

$m=\frac{y_2-y_1}{x_2-x_1}$

Where (x_1,y_1) are the first set of point in the line and (x_2,y_2) is the second set of point

Let's take 2 points arbitrarily. (0,0) & (25,20)

Let's plug it and find the equation:

$m=\frac{20-0}{25-0}=0.8$

Now

$y-y_1=m(x-x_1)\\y-0=0.8(x-0)\\y=0.8x$

C is the correct answer.

5 0

3 years ago

Read 2 more answers

the highest of three cylinders are 3 cm 9 cm and 5 cm if the cylinder has a capacity of 725 calculate the capacitance of the oth

Allushta [10]

The capacitance of the other cylinders are 2174. 94cm³ and 1208. 30cm³.

<h3>How to find the capacitance</h3>

Capacity of a cylinder is seen as its volume

Volume of a cylinder = πr²h

The heights of the cylinders are

a. 3cm

b. 9cm

c. 5cm

Let's find the radius

Capacity = 3. 142 × r² × 3

725 = 3. 142 × r² × 3

r² = $\frac{725}{3. 142 * 3}$

r² = $\frac{725}{9. 426}$

r² = 76. 91

r = √76. 91

r = 8. 77cm

Radius of the cylinders = 8. 77cm

For cylinder with height of 9cm

Capacitance = πr²h

Capacitance = 3. 142 × 8. 77 × 8. 77 × 9

Capacitance = 2174. 94 cm³

For cylinder with height of 5cm

Capacitance = 3. 142 × 8. 77 × 8. 77 × 5

Capacitance = 1208. 30 cm³

Thus, the capacitance of the other cylinders are 2174. 94cm³ and 1208. 30cm³.

Learn more about volume of a cylinder here:

brainly.com/question/9554871

#SPJ1

6 0

2 years ago

Find the product of the polynomials.

melisa1 [442]

The answer is 8n2 + 26n + 6

4 0

3 years ago

Read 2 more answers

Find the slope of each line

Klio2033 [76]

Answer:

Positive, Negative, undefined, positive

Step-by-step explanation:

6 0

3 years ago

Long divison 8755 by 67​

Long divison 8755 by 67