Hi My daughter is struggling with a question in the 2007 credit paper.
A cinema has 300 seats which are either standard or deluxe let x be the number of standard seatas and y the deluxe seats
A standard seat costs £ 4 and delux £ 6 if all seats are sold total is £ 1380
How many standard and how many delux seats are their
Thanks
link to a series of lessons ...
Systems of Linear Equations: Definitions