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?
$18
$21
$27
$48

The answer is 18

Step-by-step explanation:

The reason being that 3 is 1/3 of 9, and if at 9 C=54 that means that all you have to do it take 54 and find out what 1/3 of it is. That would be 18

The cost of the sandwiches when n is 3 would be $18

Step-by-step explanation:

Since n represents the total number of sandwiches and 54 is the total, write an equation to find the cost of n.

9n = 54

Divide 9n by both sides

n = $6

If n is 3, and we know that one cost of a sandwich is 6 dollars, multiply the cost of one sandwich with the total number of sandwiches.

$6 * 3 = $18

The cost of the sandwiches when n is 3, would be $18

49%

step-by-step explanation:

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