Jose’s salary can be modeled by the equation y = 39,000 + 1200t, and Charlie’s salary can be modeled by the equation y = 45,000 + 700t, where t represents the number of years since 2020. The graph below shows Jose’s salary and Charlie’s salary for up to 10 years after 2020. Assuming this trend continues, use the substitution method to determine when Jose’s salary will equal Charlie’s salary.

Write a system of equations that can be used to solve the problem. Then solve the system and determine the answer.

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Salaries 60,000+ Charlie's salary 50,000- Jose's salary 40,000- 30,000 6. Years After 2020 4 9. 10 + + Salary ($)