Sourkidd808
Answered

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Jenna bought four composition notebooks in three pocket folders from the bookstore and paid $9.85. If the cost of a pocket folder is $1.15 less than the cost of a notebook, find the cost for a notebook.

Sagot :

Answer:

9.85 - 1.15 = 8.70

Step-by-step explanation:

you jus subtract :)  

sqdancefan

Answer:

  $1.90

Step-by-step explanation:

Let n represent the cost of a notebook. Jenna's purchase is ...

  4n +3(n -1.15) = 9.85

  7n - 3.45 = 9.85 . . . . . simplify

  7n = 13.30 . . . . . . . . . . add 3.45

  n = 1.90 . . . . . . . . . . . . divide by 7

The cost of a notebook is $1.90.

_____

Additional comment

The cost of a folder is 1.90 -1.15 = 0.75. The total purchase is ...

  4(1.90) +3(0.75) = 7.60 +2.25 = 9.85

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