MAT PROBLEMS URGENTLY
1. Roman mixes 12 liters of 8% acid solution with a 20% acid solution, which results in a 16% acid solution. Find the number of liters of 20% acid solution in the new mixture. Construct a table to organize the information, and show all of your work to solve the problem.
2. Gavin and Seiji both worked hard over the summer. Together, they earned a total of $425. Gavin earned $25 more than Seiji. How much did each of them earn?
- Write a system of two equations with two variables to model this problem.
- Use substitution or the elimination method to solve the system.
- Graph both equations.
- Answer the question.
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