OpenStax, Algebra and Trigonometry 2e §11.8 Solving Systems with Cramer's Rule · Exercise 178 · Linear Algebra · Determinants
Solving Systems with Cramer's Rule · Exercise 178
Solve using a system of linear equations.
A small fair charges $1.50 for students, $1 for children, and $2 for adults. In one day, three times as many children as adults attended. A total of 800 tickets were sold for a total revenue of $1,050. How many of each type of ticket was sold?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Exercise 178
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