Problema Solution
An administrative assistant is making some copies. She made 43 one-sided copies and 46 two-sided copies for the V.P. of Marketing, which took a total of 316 seconds. Next, she made 37 one-sided copies and 32 two-sided copies for the Director of Sales, which took 234 seconds. How long does it take to make each type of copy?
Answer provided by our tutors
Let
x = the time needed to make one one-sided copy
y = the time needed to make one two-sided copy
43x + 46y = 316
37x + 32y = 234
........
click here to see the system of equations solved for x and y
........
x = 2 s
y = 5 s
It takes 2 seconds to make one one-sided copy and 5 second to make one two-sided copy.