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Money Invested at 7% and 5% Rate Problem: Mr. Z invested $35,000; part at 7% and part at 5%. The interest on the investments was $2,000. How much did he invested at each rate?

X + Y = Equation 1

X + Y = Equation 2

Answer, X = Answer, Y =

To check your answer substitute the value of X and Y in both equation 1 and equation 2.
To do "what if " scenario analysis , just change any variables.

Visit Determinant of 2 x 2 Matrix for more explanation on how this automatic scenario analysis becomes possible

HOW TO USE:
Type new number in input box. Answer is automatic

IMPORTANT to enter 1 if there is no constant on X and Y. For negative number enter the negative sign, for example, -1. Do not include the comma symbol , because it will display Not a Number (NaN) error message.

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