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OpenStudy (anonymous):
the total cost of an item includes sales tax is directly proportional to its price. if the total cost of a $24 item is $25.44 , what is the total cost on a $75 item
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OpenStudy (anonymous):
25.44/24 = x/75 75*25.44 = 24x x = 75*25.44/24 = 79.5
OpenStudy (anonymous):
What did you get?
OpenStudy (triciaal):
directly proportional means as one goes up/down the other goes up/down by a certain constant factor. |dw:1439014496738:dw|
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