cannot figure out

Question

Bob earns a base salary of $1400 per month and a commission of 7% on the amount of sales he makes. One month Bob receives a $1939 paycheck. Find the amount of his sales for the month

Answer 1

s = amount of sales

 

paycheck = 1400 + 0.07s

1939 = 1400 + 0.07s

539 = 0.07s

7700 = s

 

Bob's sales were $7,700.