Formulate a system of equations for the situation below and solve.
Michael Perez deposited a total of $4000 with two savings institutions. Bank A pays interest at the rate of 6%/year, whereas Bank B pays interest at the rate of 7%/year. If Michael earned a total of $266 in interest during a single year, how much did he deposit in each institution?
Consider the amount interest at 6% as p and the amount interest at 7% as q.
So the total amount invested is p + q = 4000.
Amount earned at 6% interest is 0.06p
Amount earned a...
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