please help look at the descripton

Question

A waitress sold 12 ribeye steak dinners and 27 grilled salmon dinners, totaling $595.65 on a particular day. Another day she sold 28 ribeye steak dinners and 9 grilled salmon dinners, totaling $581.69. How much did each type of dinner cost?​

Answer 1

r = cost of ribeye

s = cost of salmon

You need to solve the following system of linear equations:

12r + 27s = 595.65

28r + 9s = 581.69

Using Cramer's rule, I get

r = 15.9641...

s = 14.9659...

Note the answers do not come down to a penny. Please double check the numbers in the original question, to the penny.