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Algebra
Question

Mixing Acid Solutions A chemist has two prepared ...

Mixing Acid Solutions A chemist has two prepared acid solutions, one of which is \(2 \%\) acid by volume, the other \(7 \%\) acid. How many cubic centimeters of each should the chemist mix together to obtain \(40 cm ^ { 3 }\) of a \(3.2 \%\) acid solution?

Answer

\(\left. \begin{array} { l } { \text { concrete finisher: } \$ 160 \quad \text { 59. } 12,6,2 \text { 61. } 9.6 cm ^ { 3 } \text { of } 7 \% } \\ { 30.4 cm ^ { 3 } \text { of } 2 \% \quad \text { 63. } \$ 5000 \text { at } 1.5 \% ; \$ 10,000 \text { at } 2.2 \% } \end{array} \right.\)

Solution
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