Question

John's monthly paycheck consists of $4000 plus a 9% commission on all of his sales. during one month, john earned $11,650. what were his sales during that month?

Answer 1

The first thing you should do for this case is write an equation that allows you to find John's sales during the month.
 Let
 x = amount of money in sales.
 The equation is:
 4000 + 0.09x = 11650
 Clearing x we have:
 0.09x = 11650-4000
 x = (11650-4000) / (0.09)
 x = $ 85,000
 answer:
 his sales during that month were
 $ 85,000