OpenStax, Algebra and Trigonometry 2e §11.7 Solving Systems with Inverses · Exercise 61 · Linear Algebra · Matrices
Solving Systems with Inverses · Exercise 61
Write a system of equations that represents the situation. Then, solve the system using the inverse of a matrix.
Anna, Percy, and Morgan weigh a combined 370 lb. If Morgan weighs 20 lb more than Percy, and Anna weighs 1.5 times as much as Percy, how much does each person weigh?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §11.7 Solving Systems with Inverses · Exercise 61
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