OpenStax, Algebra and Trigonometry 2e §11.6 Solving Systems with Gaussian Elimination · Exercise 57 · Linear Algebra · Matrices
Solving Systems with Gaussian Elimination · Exercise 57
Set up the augmented matrix that describes the situation, and solve for the desired solution.
You invested $2,300 into account 1, and $2,700 into account 2. If the total amount of interest after one year is $254, and account 2 has 1.5 times the interest rate of account 1, what are the interest rates? Assume simple interest rates.
OpenStax, Algebra and Trigonometry 2e · §11.6 Solving Systems with Gaussian Elimination · Exercise 57
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