A coffee shop sells assorted types of coffees, and blends them into their "signature blends". Kenyan sells for $3.40 per pound, and Costa Rican sells for $7.40 per pound. A customer pays $24.60 for 4 pounds of a blend. How much of each type of coffee goes into the blend?

Amount of Kenyan coffee = pounds
Amount of Costa Rican coffee = pounds

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