A) Sasha works to complete hard and easy drawings for her art class. Each hard piece takes here 30 minutes and
each easy piece takes her 10 minutes to complete. If she
makes a total of 16 pieces and takes a total of 260
minutes, how many of each did she draw.
let x = # of hard pieces she drew
let y = # of easy pieces
note that time = (# of pieces)(mins per piece)
use model:
total time = time on hard + time on easy pieces