Kims revenue one week ago were 251 less than three times Jan

Kim’s revenue one week ago were $251 less than three times Janes revenue. Collectively they sold $1123. Determine how much each person sold last week.

Solution

Let janes revene=x

kanes revenue=y

y-3x=251--------(!)

x+y=1123---------(2)

solving(1) and (2) we get

subtract (2) from (1)

x+y-y+3x=1123-251

4x=872

x=872/4

x =218

substitute this in (2) to get y

y=1123-218

y =905

janes revenue=$218

Kim’s =$905