Ella bought 8 folders and 3 rulers. kaila bought 8 rulers and 3 folders. Ella paid $1.25 more than kaila. How much was each folder if each ruler was $0.45?

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Answer 1

8f + 3r = 8r + 3f + 1.25

r = 0.45

8f + 3(0.45) = 8(0.45) + 3f + 1.25

5f + 1.35 = 3.60 + 1.25

5f = 3.50

f = 0.70