Question

The cost, c, of a ham sandwich at a deli varies directly with the number of sandwiches, n. If c = $54 when n is 9, what is the cost of the sandwiches when n is 3?

Answer 1

C=18
if c=54 when n=9, and you need to know c when n is 3, just divide 54 by 3 as well! hope this helped