Note: Pure acid is 100% acid and water is 0% acid.

Example

Pedro is adding 18 ml of a 25% solution to add pure acid. Find the function for this situation.

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Check Your Answer

f(x) = 18(.25) + x(1) all over 18 + x 18(.25) + x(1) 18 + x

Example

Anita adds water to 35 ml of a 20% acid solution to dilute it. Find the function of the solution.

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Check Your Answer

f(x) = 35(.20) + x(0) all over 35 + x 35(.20) + x(0) 35 + x