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x+1.5x=8000

 Jul 11, 2014

Best Answer 

 #1
avatar+3454 
+5

x+1.5x=8000

2.5x=8000

--------------

A number + 1.5 times a number is the same thing as 2.5 times a number. To prove that this works, put in a random number for x.

(10)+1.5(10) = 2.5(10)

10+15 = 25

25 = 25

Therer you go, it works!

------------

2.5x=8000          ---Divide both sides by 2.5

x = 3200

 

To check this, put in 3200 for x in the original equation.

(3200)+1.5(3200)=8000

3200+4800=8000

8000=8000

 

This is a true statement, so this works!

 Jul 11, 2014
 #1
avatar+3454 
+5
Best Answer

x+1.5x=8000

2.5x=8000

--------------

A number + 1.5 times a number is the same thing as 2.5 times a number. To prove that this works, put in a random number for x.

(10)+1.5(10) = 2.5(10)

10+15 = 25

25 = 25

Therer you go, it works!

------------

2.5x=8000          ---Divide both sides by 2.5

x = 3200

 

To check this, put in 3200 for x in the original equation.

(3200)+1.5(3200)=8000

3200+4800=8000

8000=8000

 

This is a true statement, so this works!

NinjaDevo Jul 11, 2014

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