Math CentralQuandaries & Queries


Question from Jodi, a parent:

For the ratio given, find three equal ratios: 2 miles/8 minutes


You could just work with the numbers and use 2/8 = 1/4 = 4/16 so

2 miles/8 minutes = 1 miles/4 minutes = 4 miles/16 minutes

but I don't think that is what is expected. I think you are expected to convert this to say miles/hour or feet/minute or feet/second or some units other than miles/minute. For example let's convert miles/minute to miles/second. The units tell you what to do. There are 60 seconds in a minute so


Now try some other units.


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