An herbalist has 30oz of hervs costing $2 per ounce. How many ounces of hervs costing $1 an ounce should be mixed with the 30iz ti oridyce a nuxtyrecistubg $1.60 per ounce.
An herbalist has 30oz of herbs costing $2 per ounce.
How many ounces of herbs costing $1 an ounce should be mixed with the 30 oz to produce a mixture costing $1.60 per ounce?
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