Two hundred gallons of a 9% acid solution are to be strengthened to a 12% solution.?

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Determine how many gallons of a 29% solution of the same acid have to be added to the
two hundred gallons to achieve this effect.

2007-06-19 05:28:45 · 2 answers · asked by Lregofins34 2 in Science & Mathematics ➔ Mathematics

200(0.09) + x(0.29) = (200 + x)(0.12)
18 + 0.29x = 24 + 0.12x
0.17x = 6
x = 35.29 gallons

2007-06-19 05:36:12 · answer #1 · answered by yeeeehaw 5 · 0⤊ 0⤋

35.294

2007-06-19 05:44:21 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋