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Example 1: Using the appropriate formula, find the percent rate of change of the volume of liquid in a water bottle if the initial volume was 2 cups and the final volume was 1.5 cups.
Example 1: Using the appropriate formula, find the percent rate of change of the volume of liquid in a water bottle if the initial volume was 2 cups and the final volume was 1.5 cups.
change = 1.5 cups (final amount) - 2 cups (initial amount) = -.5 cups
change = 1.5 cups (final amount) - 2 cups (initial amount) = -.5 cups
(-.5 cups/2 cups) x 100 = -25%
(-.5 cups/2 cups) x 100 = -25%
The volume of the liquid in the water bottle decreased by 25 percent.
The volume of the liquid in the water bottle decreased by 25 percent.
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