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A car is traveling at a rate of 60 kilometers per hour. What is the car's rate in miles per hour? How many miles will the car travel in 3 hours? In yourcomputations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answers.

1 Answer

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37.5 mile per hour

112.5 miles

Step-by-step explanation:

rate = 60km per hour

1 mile = 1.6 kilometer

Let's convert:


\frac{60\operatorname{km}}{1\text{ hour}}*\frac{1\text{ mile}}{1.6\operatorname{km}}
\begin{gathered} \frac{60\operatorname{km}}{1\text{ hour}}*\frac{1\text{ mile}}{1.6\operatorname{km}}\text{ km cancels out, we are left with mile per hour} \\ \text{= }\frac{60\text{ mile}}{1.6\text{ hour}} \\ =\text{ 37.5mile per hour} \end{gathered}

The car's rate in miles per hour is 37.5 mile per hour

In 1 hour, the car travels 37.5 mile

In 3 hours, the car will travel = 3 × 37.5miles

= 112.5 miles

In 3 hours, the car will travel 112.5 miles

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