Using a Diagram to Model Distance Between Cities
There is a straight road leading from the town of Westborough to Agritown 30 miles east and 10 miles north. Partway down this road, it junctions with a second road, perpendicular to the first, leading to the town of Eastborough. If the town of Eastborough is located 20 miles directly east of the town of Westborough, how far is the road junction from Westborough?
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OpenStax, Algebra and Trigonometry 2e · §4.2 Modeling with Linear Functions · Example 4
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