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OpenStudy (anonymous):
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
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OpenStudy (anonymous):
$18 because if c=54 when n is 9 that means 54/9= 6 so the sandwich is $6 so you would replace 9 with 3 54/3= 18 so the sandwich costs $18
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