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15-08-2016
Mathematics

contestada

A airline travels 80 miles in 10 minutes. What is its speed in miles per hour?

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15-08-2016

60mins in 1 hour

80mi per 10min=xmi per 60min
ration and porportion

80mi/10min=xmi/60min
times both sides by 60min
480mi=xmi
answer is 480miles per hour

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