Problem:
Room Prices
Ten rooms are rented at rates of $80.00 (USD) and $120.00 (USD) per night. The total collected for the 10 rooms is $920.00 (USD).
(a) Write a system of linear equations whose solution gives the number of each type of room rented. Be sure to state what each variable represents.
(b) Solve the system of equations.
Provide complete and step by step solution for the question and show calculations and use formulas.