SOLUTION: John bought 6 pens and 10 rulers. Richard bought 8 pens and 5 rulers. Richard paid $3.80 for his purchases. How did each pen cost?

SOLUTION: John bought 6 pens and 10 rulers. Richard bought 8 pens and 5 rulers. Richard paid $3.80 for his purchases. How did each pen cost?

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Question 982084: John bought 6 pens and 10 rulers. Richard bought 8 pens and 5 rulers. Richard paid $3.80 for his purchases. How did each pen cost?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You left out how much John paid

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