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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?

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OpenStax, Algebra and Trigonometry 2e · §11.7 Solving Systems with Inverses · Exercise 61

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