Answer: The cost of one of these models is $1699.
Step by step solution:
Let's start by writing an equation that fits the situation.
Let x = model cost LED TV set cost
He sold 5 of these sets, his commission is of 6% = 0.06 = 6/100, and earned $509.70.
Solve for x,
Answer: The cost of one of these models is $1699.