Problema Solution
A university bookstore recently sold a wirebound graph-paper notebook for 1.10 and a college-ruled notebook for 3.16 at the start of spring semester a combination of 50 of these notebooks were sold for a total of 102.38 How many of each type were sold
Answer provided by our tutors
graph notebook=1.10
college notebook=3.16
so let the number of graph book be x
so 1.10*x + 3.16(50-x)=102.38
=>1.10x + 158 - 3.16x=102.38
=>2.06x=52.62
=>x =25
and 50-x=25