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The cost of a candle varies directly with the volume of the candle. If a candle with a volume of 80 cm³ costs $12, what would be the cost of a candle with a volume of 120 cm³?

Respuesta :

sqdancefan
If c represents that cost, then
.. 12/80 = c/120
.. c = 120*(12/80) = 18

The cost of the larger candle is $18.

Answer:

The cost of a candle with a volume of 120 cm³ is:

$18

Step-by-step explanation:

We are given that

A candle with a volume of 80 cm³ costs $12

and the cost of a candle varies directly with the volume of the candle

               cost of 80 cm³ of candle= $12

            so, the cost of 1 cm³ of candle=  $ 12/80

      Hence, cost of 120³ of candle=  $  12×120/80

                                                       =  $ 18

Hence,  the cost of a candle with a volume of 120 cm³ equals:

 $18

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