Problema Solution

Kaitlin is a medical saleswoman and must choose between two salary contracts. In Contract A she is paid only by commission: her pay equals 15% of her total sales each month. In Contract B, she gets paid $210 per month plus 10% of her total sales.

For what monthly sales amounts will Contract A give more money than Contract B? Use s for the monthly sales amount (in dollars), and solve your inequality for s.

Answer provided by our tutors

Monthly sales—s:

0.15s > $210 + 0.10s

0.05s > $210

s > $4,200


Answer: The monthly sales must be more than $4,200 in order that Contract A will be better than Contract B.