A jewelry maker purchased 20 inches of gold chain. She used 3/8 of the chain for a bracelet. How many inches of gold chain did she have left?

The answer is 12.5 inches.

Given that the jewelry maker has a 20 inch gold chain, if she used 3/8 of this amount = (3/8) x 20

= 7.5

This means that she has used 7.5 inches of the gold chain.

To find out how many inches she has left, the formula = the total amount - the amount used.

=20 - 7.5

= 12.5

Therefore, the length of the gold chain left is 12.5 inches.