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kemzzoo7206
11.02.2020 •
Mathematics
You are given the total annual interest earned from a total of $12,000 invested in two funds paying the given rates of simple interest. Write and solve a system of equations to find the amount invested at each rate. Annual Interest $500, Rate 1 3% , Rate 2 5%.
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Ответ:
The investment at 3% rate = 5000$
The investment at 5% rate = 7000$
Step-by-step explanation:
The following two equations will be developed.
1. x + y = 12000$
2. 3% (x) + 5% (y) = 500$
converting percentage
Solving these two equations will give the answer of x and y.
We will use the substitute method from equation 1
Inserting the value in second equation
Now substituting the value of y in Equation 1
Ответ: