Mathematics
Mathematics, 19.10.2020 09:01, yoyo0123

A lab technician has 40 gallons of a 15% iodine solution. How many gallons of a 40% iodine solution must he add to make a 20% iodine solution?

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A lab technician has 40 gallons of a 15% iodine solution. How many gallons of a 40% iodine solution...

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