Problema Solution
Serena pad 20.20 for 36 rulers and folders together. She bought 16 more folders than rulers. If each folder costs $ . 50 more than each ruler, how much did each folder cost?
Answer provided by our tutors
Let
x = the number of rulers
x + 16 = the number of folders
x + x + 16 = 36
x = 10 rulers
10 + 16 = 26 folders
Let 'c' represent the cost of each folder then each ruler costs 'c - 0.50':
10(c - 0.50) + 26c = 20.20
........
click here to see the equation solved for c
........
c = $0.70
Each folders costs $0.70.