Jessica invested a total of $6200, in which she had half of her investments in stock paying a 9% dividend and the other half in a stock paying 11 % interest.
An equation is an expression that shows the relationship between two or more numbers and variables.
Independent variables represent function inputs that do not depend on other values, while dependent variables represent function outputs that depends on other values.
Let us assume that the total money Jessica invested was $x, since the annual interest is $620, hence:
0.09(0.5)x + 0.11(0.5)x = 620
x = 6200
Jessica invested a total of $6200, in which she had half of her investments in stock paying a 9% dividend and the other half in a stock paying 11 % interest.
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