Alright, I'm in grade 11 and this is a homework problem but I don't want the answers to it, I need some hints as to how to do it.

Alright so first it say's:

a)What is the resistance of a coffee maker that draws a current of 5.0A from a 117V source?

So I found the answer to part A which is 23.4. But I'm stuck on part B here it is:

b)What resistance would have to be added in parallel with the same coffee maker to increase the current to 15.0A?

Please, If anyone can give me some hints that would be great. I know it is very easy, but I'm still stuck on it.