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Naddika [18.5K]
3 years ago
9

What is 4x(5x-2)=20x-2

Mathematics
1 answer:
Zanzabum3 years ago
7 0

Answer: x = 1.32 and x= 0.076

Step-by-step explanation:

4x(5x-2) = 20x-2

20x^2-8x = 20x-2

20x^2-8x-20x+2=0

20x^2-28x+2=0

Using quadratic equation

x = (-b +or- √(b^2-4ac))/2a

a =20, b=28, c= 2

Substitute into the equation

x= (7+√39)/10. = 1.32

x = (7-√39)/10 = 0.076

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4 years ago
A plane has 240 gallons of fuel. The plane averages 5 miles per gallon. How far can the plane go? ​
artcher [175]

Answer:

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Step-by-step explanation:

 5 ⟌ 2 4 0

  0    

   5 ⟌ 2 4 0

       0    

   5 ⟌ 2 4 0

      0    

       0    

   5 ⟌ 2 4 0

     - 0    

       2    

       0    

   5 ⟌ 2 4 0

     - 0    

       2 4  

       0 4  

   5 ⟌ 2 4 0

     - 0    

       2 4  

  0 4  

   5 ⟌ 2 4 0

     - 0    

       2 4  

       2 0  

       0 4  

   5 ⟌ 2 4 0

     - 0    

       2 4  

     - 2 0  

         4  

   0 4  

   5 ⟌ 2 4 0

     - 0    

       2 4  

     - 2 0  

         4 0

0 4 8

   5 ⟌ 2 4 0

     - 0    

       2 4  

     - 2 0  

         4 0

       0 4 8

   5 ⟌ 2 4 0

     - 0    

       2 4  

     - 2 0  

         4 0

         4 0

You are done, because there are no more digits to move down from the dividend.

The answer is the top number and the remainder is the bottom number.

Therefore, the answer to 240 divided by 5 calculated using Long Division is:

48

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