Mathematics, 05.07.2019 15:50 josephsky420

Maria is setting up a 20gal salt water fish tank. that needs to have a salt content of 3.5% . if she has water with 2.5% salt and water with 3.7% salt. how many gallons of water with 3.7% salt content must she

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Maria is setting up a 20gal salt water fish tank. that needs to have a salt content of 3.5% . if she...