Find a percent of a quantity and interpret the result in context.
Find a percent of a decimal or rational quantity
Problem
Find \(15\%~\text{of}~8.4\).
Big Picture
What this problem is really about
The word of signals multiplication even when the whole is a decimal quantity. We’ll convert fifteen percent to its decimal multiplier, multiply by all of eight point four, and track the combined decimal places carefully. Adding ten percent and five percent of the same whole provides an independent check on the product.
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