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Speed word problem

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Kim starts to walk 3 miles to school at 7:30 a.m. with a temperature of 0 degrees F. Her brother Bryan starts t 7:45 a.m. on his bicycle traveling 10 mph faster than Kim. If they get to school at the same time, than how fast is each one traveling?

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Solution Preview

let the speed of Kim be x then speed of Bryan will be x + 10

Time taken by Kim = 3/x

Time taken by Bryan = ...

Solution Summary

This provides an example of solving a word problem involving speed of people.