At a certain restaurant, the price of a sandwich is $ 4.00 more than the price of a cup of coffee. If the price of a sandwich and a cup of coffee is $ 7.35, including a sales tax of 5%, what is the price of a cup of coffee, EXCLUDING the sales tax?  Answers:	A) $ 1.50	B) $ 3.00	C) $ 4.00	D) $ 5.50	E) $ 7.00
Let the price of sandwich = S   price of coffee = C   S= C+4   =&gt; S - C = 4 --1   the price of a sandwich and a cup of coffee is $ 7.35, including a sales tax of 5%,   1.05(S+C) = 7.35   =&gt; S+C = 7 --2   From equations 1 and 2, we get   S=5.5$   C= 1.5$   $ 1.50nswer $ 1.50
<result>A</result>
At a certain restaurant, the price of a sandwich is $ 4.00 more than the price of a cup of coffee. If the price of a sandwich and a cup of coffee is $ 7.35, including a sales tax of 5%, what is the price of a cup of coffee, EXCLUDING the sales tax?