because 10/3 if you multiply 3 times 10 and keep 10 and switch it around you'll get 30/10
the right system of equations to describe the situation would
be on the form:
x1 = 8000 + y1*t
x2 = 8000 + y2*t
where x1 and x2 represents the total money of imogene and her
friend respectively at the end of t years.
now for the value of amount earned, y1 and y2: