SOLUTION: The cost of three notebooks and six pens is $18.51 The cost of three notebooks and 10 pens is $24.87 Determine the cost of one notebook and the cost of one pen.

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Question 1095485: The cost of three notebooks and six pens is $18.51 The cost of three notebooks and 10 pens is $24.87 Determine the cost of one notebook and the cost of one pen.
Answer by ikleyn(52906) About Me  (Show Source):
You can put this solution on YOUR website!
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HINT: The difference of the two costs IS EXACTLY the cost of 4 pens.


Lessons to learn from this solution: 

    1.  This problem is for MENTAL solution.


    2.  You do not need solve system of equations to get the answer.