Compute and interpret unit rates, including rates with fractional or decimal quantities.
Find a unit rate from whole numbers
Problem
A car travels \(180~\text{miles}\) in \(3~\text{hours}\). What is the unit rate in miles per hour?
Big Picture
What this problem is really about
Miles per hour tells us both the division order and the target denominator: miles divided by hours, scaled to one hour. We’ll divide the full distance by the elapsed time, keep the units in that order, and multiply the unit rate by three hours to reconstruct the trip. That check catches a reciprocal rate.
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