Question

Chris can be paid in one of two ways. Plan A is a salary of $400 per month, plus

a commission of 7% of sales. Plan B is a salary of $692 per month, plus a
commission of 3% of sales. For what amount of sales is Chris better off selecting
plan A?

Answer 1

$7300

Explanation:

For Chris to select plan A, Plan A salary should be greater than that of plan B. Let the amount of sales be x

`400 + (7)/(100) x > 692 + (3)/(100) x \\ (7)/(100) x - (3)/(100) x > 692 - 400 \\ (4)/(100) x > 292 \\ x > 7300`