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Sveta_85 [38]
3 years ago
5

2. Gabby spent $3.60 for stamps to mail packages. Some were 30C/stamps and the rest

Mathematics
1 answer:
lesya [120]3 years ago
7 0
8 of 30c and 6 of 20c.
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F is between E and G. EF=3X, EG= 11x-2, FG= 5x+16. Find the value of the variable
Salsk061 [2.6K]

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Answer:

  x = 6

Step-by-step explanation:

The sum of segments is used:

  EF +FG = EG

  3x +(5x +16) = 11x -2 . . . . substitute given expressions

  8x +18 = 11x . . . . . . . . add 2

  18 = 3x . . . . . . . . subtract 8x

  6 = x . . . . . . divide by 3

The value of the variable is 6.

__

<em>Check</em>

The segment lengths are ...

  EF = 3x = 3·6 = 18

  FG = 5x+16 = 5·6 +16 = 46

  EG = 11x -2 = 11·6 -2 = 64 = 18+46 . . . answer is correct

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Solve using substitution <br> y= x+4<br> x-y= -4
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