Fourty Liters of a 40% Acid Solution Is Obtained by Mixing

question 207

Multiple Choice

Fourty liters of a 40% acid solution is obtained by mixing a 28% solution with a 50% solution.Write a system of equations in which one equation represents the amount of final mixture required and the other represents the percent of acid in the final mixture.Let x and y represent the amounts of the 28% and 50% solutions, respectively.

• A) \(\left\{ \begin{array} { l }
• x + y = 40 \\
• 0.28 x + 0.5 y = 40
• \end{array} \right.\)
• B) \(\left\{ \begin{array} { l }
• 0.28 x + 0.5 y = 40 \\
• x + y = 16
• \end{array} \right.\)
• C) \(\left\{ \begin{array} { l }
• x + y = 40 \\
• 0.28 x + 0.5 y = 16
• \end{array} \right.\).
• D) \(\left\{ \begin{array} { l }
• x + y = 40 \\
• 0.28 x + 0.5 y = 16
• \end{array} \right.\)
• E) \(\left\{ \begin{array} { l }
• 0.28 x + 0.5 y = 40 \\
• x + y = 16
• \end{array} \right.\).

---

Definitions:

Colonialism

The policy or practice of acquiring full or partial political control over another country, occupying it with settlers, and exploiting it economically.

Global World

A global world describes an interconnected and interdependent world where goods, services, people, and ideas cross international boundaries easily.

Regionalization

The process of dividing an area into smaller segments or regions, often to manage or administrate more effectively.

Course Materials

Resources and texts used in educational courses for learning and instruction.