Solving Systems with Inverses · Exercise 60
Write a system of equations that represents the situation. Then, solve the system using the inverse of a matrix.
A clothing store needs to order new inventory. It has three different types of hats for sale: straw hats, beanies, and cowboy hats. The straw hat is priced at $13.99, the beanie at $7.99, and the cowboy hat at $14.49. If 100 hats were sold this past quarter, $1,119 was taken in by sales, and the amount of beanies sold was 10 more than cowboy hats, how many of each should the clothing store order to replace those already sold?
OpenStax, Algebra and Trigonometry 2e · §11.7 Solving Systems with Inverses · Exercise 60
No hints for this one.
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.