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Katyanochek1 [597]
2 years ago
5

One-half of a number added to itself equals twice the difference of the number and four.

Mathematics
2 answers:
Sphinxa [80]2 years ago
8 0

Answer:

i don't know answer sorry

dybincka [34]2 years ago
6 0

Answer:One-half of a number added to itself equals twice the difference of the number and four.

Step-by-step explanation:

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3 years ago
Ava bought some pens for $ 2 each and some pencils for $ 1 each. She bought 3 more pens than pencils and spent a total of $ 12.
Rudiy27

Answer:

Step-by-step explanation:

price of 1 pen= $ 2

price of 1 pencil= $1

total money spent= $12

Let the number of pen be a and number of pencil be b.

 2 a + b = 12   ----------------Equation 1

We have, she bought 3 more pens than pencils

  a - b = 3   ------------------  Equation 2

 Equation 1 +Equation 2,  

   2 a + b +  a - b = 12 + 3

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                     a = 5

 Substituting in  equation

           5 - b = 3

               b = 2

 Number pencils Ava bought = 2

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Help me with this Geometry question
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