Solve the Problem Using Matrices $$50 \mathrm {~cm} ^ { 3 }$$

question 101

Multiple Choice

Solve the problem using matrices.
-A chemist has prepared two acid solutions, one of which is 4% acid by volume, another 11% acid.

How many cubic centimeters of each should the chemist mix together to obtain 5 $$50 \mathrm {~cm} ^ { 3 }$$ of a solution
That is 6.66% acid.

• A) \(31 \mathrm {~cm} ^ { 3 }\) of \(4 \% ; 19 \mathrm {~cm} ^ { 3 }\) of \(11 \%\)
• B) \(3.33 \mathrm {~cm} ^ { 3 }\) of \(4 \% ; 46.67 \mathrm {~cm} ^ { 3 }\) of \(11 \%\)
• C) \(20 \mathrm {~cm} ^ { 3 }\) of \(4 \% ; 20 \mathrm {~cm} ^ { 3 }\) of \(11 \%\)
• D) No solution

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