OpenStax, Algebra and Trigonometry 2e §2.3 Models and Applications · Exercise 23 · Algebra · Inequalities
Models and Applications · Exercise 23
Use the information to find a linear algebraic equation model to use to answer the question being asked.
Beth and Ann are joking that their combined ages equal Sam’s age. If Beth is twice Ann’s age and Sam is 69 yr old, what are Beth and Ann’s ages?
OpenStax, Algebra and Trigonometry 2e · §2.3 Models and Applications · Exercise 23
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