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kozerog [31]
3 years ago
6

notebooks cost $1.20 each this weekend they will be on sale for $0.80 what percentage off of the orignal sale

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
6 0

Answer:

40 % off

Step-by-step explanation:

First you are going to 1.30, then divided that by 0.80

tangare [24]3 years ago
5 0

Answer:

33%

Step-by-step explanation:In the question it is already given that the actual cost of each notebook is $1.20. For the weekend, the notebooks would sold at a discounted rate of $0.80

The amount of discount during the weekend = (1.20 - 0.80) dollars

                                                                      = 0.40 dollars

So the amount of discount given during the weekend is $0.40

Now we need to find the percentage of discount given during the weekend.

Then

Percentage of discount during the weekend = (0.40/1.20) * 100

                                                                      = 0.33 * 100

                                                                      = 33

Then the percentage of discount given is 33%.

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Answer:

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Step-by-step explanation:

use the quadratic formula. what is in the square root is called the discriminant.

since it came out to 0 there is one real solution

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Step-by-step explanation:

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3 years ago
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The Eiffel Tower in Paris, France. Lizbeth is 5.5 feet tall. She looks up at an angle of elevation of 72° to see the top from 31
Galina-37 [17]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Systems of Linear Equations What are the different ways to solve a system of linear equations? When do you get an answer to a sy
Mrac [35]

Answer:

Different ways to solve a system of linear equations:

  • isolate one variable in one equation and replace it in the other equation
  • multiply/divide one equation by a constant and then add/subtract it to the other one, so that only one variable remains
  • graph the equation and look at the intersection point

If you graph the system:

  • there is only one solution if the lines intersects at only one point
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  • there are infinitely many solutions if the lines overlap each other (they are the same equation multiplied by some constant)

Step-by-step explanation:

1st system

y = -x – 7  

y = 4/3 x – 7  

solution: x= 0, y = 7

2nd system

y = -3x – 5  

y = x + 3  

solution: x = -2, y = 1

3rd system

y = -2x + 5  

y = 1/3 x – 2

solution:  x = 3, y = -1

4th system

3x + 2y = 2  

x + 2y = -2  

solution: x = 2, y = -2

5th system

x + 3y = -9  

2x – y = -4

solution:  x = -3, y = -2

6th system

x – 2y = 2

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solution:  x = -4, y = -3

7th system

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solution: x = -1, y = -3

3 0
3 years ago
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Look at the triangle below which of the following represents two of the angle measures of the triangle
Gelneren [198K]

Answer:

C. 60° and 80°

Step-by-step explanation:

Sum of triangle = 180°

Therefore,

8x + 4 + 6x - 2 + 10x + 10 = 180

Add like terms

8x + 6x + 10x + 4 - 2 + 10 = 180

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24x = 180 - 12

24x = 168

x = 168/24

x = 7

Find each measure of the angles by substitute x = 7 into each expression

8x + 4 = 8(7) + 4 = 60°

6x - 2 = 6(7) - 2 = 40°

10x + 10 = 10(7) + 10 = 80°

The answer is 60° and 80°

6 0
3 years ago
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