Question

caroline, an employee of hollister, bought a sweater originally priced at $55 for $38.50 after her employee discount. what percent off is the employee discount?

Answer 1

you set up a cross multiplication where
38.50 x
------- --------
55 100
38.50 is a fraction of 55, x is a fraction of 100 and these are proportional. to find x you multiply 38.50 by 100 and divide by 55. so:

38.50*100=3,850
3,850/55=70
we get 70

HOWEVER, 70 is not the answer. It just means that 38.50 is 70% of 55. she paid 70% out of 100%, the difference is 30%.

the answer is that the employee discount is of 30%

Answer 2

1-38.5/55
30 percent
...