SOLUTION: The mass of a substance varies directly with the volume of the substance. The volume of 100 kilograms of substance is 80 liters. What is the volume, in liters, of 3.2 kilograms of

Algebra ->  Functions -> SOLUTION: The mass of a substance varies directly with the volume of the substance. The volume of 100 kilograms of substance is 80 liters. What is the volume, in liters, of 3.2 kilograms of       Log On


   



Question 975946: The mass of a substance varies directly with the volume of the substance. The volume of 100 kilograms of substance is 80 liters. What is the volume, in liters, of 3.2 kilograms of this substance?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The mass of a substance varies directly with the volume of the substance.
The volume of 100 kilograms of substance is 80 liters.
What is the volume, in liters, of 3.2 kilograms of this substance?
:
Use a ratio equation, let x = amt in liters of 3.2 kg
x%2F80 = 3.2%2F100
Cross multiply
100x = 3.2 * 80
100x = 256
x = 256/100
x = 2.56 liters