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30 votes
30 votes
A friend tells you that he can run three miles in half an hour. You want to calculate his speed in miles per hour. The ratio is: 3miles------------1---2 hours converts this ratio to a unit cup

User Richa
by
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1 Answer

17 votes
17 votes

Given:

The ratio of speed is given as.


\frac{3\text{ mies}}{(1)/(2)\text{ hours}}

The objective is to convert the ratio into unit ratio.

The unit ratio can be calculated by multiplying 2 on numerator and denominator, so that the denominator will become one.


\begin{gathered} \frac{3*2\text{ miles}}{(1)/(2)*2\text{ hour}} \\ \frac{6\text{ miles}}{1\text{ hour}}\text{ } \\ 6\text{ miles/hour} \end{gathered}

Hence, the unit ratio is 6 miles/hour.

User Matyr
by
2.6k points
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