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myrzilka [38]
2 years ago
15

PLz help me! We r doing semester finals and i need to get this lesson finished in 2 hours so i can get my grade up!

Mathematics
1 answer:
Leto [7]2 years ago
6 0

Answer:

$84

Step-by-step explanation:

1. If 20% is marked off, then you are selling it for 80%.

2. 455 * 80% = 364

3. Since you are finding the cost markup from 280, then 364-280=84

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It takes 27 pounds of seed to completely plant a 3-acre field. How many pounds of seed are needed per acre?
Ray Of Light [21]

Answer:

9 pounds of seed per acre.

Step-by-step explanation:

All you have to do is division.  It takes 27 pounds of seed to make 3 acres, so 27 divided by 3.  That gives you 9.

5 0
3 years ago
An angle, θ, is in standard position. The terminal side of the angle passes through the point (4, 5).
lara31 [8.8K]

Answer:

cos Θ = \frac{4}{\sqrt{41} }

Step-by-step explanation:

Given the angle passes through (4, 5 ) then the right triangle with sides 4 and 5 has hypotenuse h given by

h² = 4² + 5² = 16 + 25 = 41 ( take the square root of both sides )

h = \sqrt{41}

In relation to Θ, 4 is adjacent and 5 is opposite, thus

cos Θ = \frac{adjacent}{hypotenuse} = \frac{4}{\sqrt{41} }

5 0
3 years ago
Please Help Me Quickly As Soon As Possible, I Have A Test. I Will Give Out Brainly.
Dima020 [189]

The equation to show the depreciation at the end of x years is

f(x) = 1500 - 200x

Data;

  • cost of machine = 1500
  • annual depreciation value = x

<h3>Linear Equation</h3>

This is an equation written to represent a word problem into mathematical statement and this is easier to solve.

To write a linear depreciation model for this machine would be

For number of years, the cost of the machine would become

1500 - 200x

This is properly written as

f(x) = 1500 - 200x

where x represents the number of years.

For example, after 5 years, the value of the machine would become

f(x) = 1500 - 200x\\f(5) = 1500 - 200(5)\\f(5) = 1500 - 1000\\f(5) = 500

The value of the machine would be $500 at the end of the fifth year.

From the above, the equation to show the depreciation at the end of x years is f(x) = 1500 - 200x

Learn more on linear equations here;

brainly.com/question/4074386

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A human head remains conscious for around 20 seconds after being decapitated. ...
gregori [183]

Answer:

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2 years ago
In which section of the number line is √5?
Ymorist [56]

We know that \sqrt(4) and \sqrt(9) are 2 and 3 respectively. Therefore, /sqrt(5) is between 2 and 3, approximately 2.2.

6 0
3 years ago
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