Problema Solution
PC Solutions sells regular keyboards for $84 and wireless keyboards for $105. Last week the store sold three times as many regular keyboards as wireless. If total keyboard sales were $4,998, how many of each type were sold?
Answer provided by our tutors
let 'x' represent the number of wireless keyboards sold, then '3x' represents the number of regular keyboards sold.
4998=105x+84(3x)
click here to solve for the number of wireless keyboards
x=14
14*3=42
So 14 wireless keyboards and 42 regular keyboards were sold.