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Algebra
Pregunta

A motorboat can maintain a constant speed of \( 17...

A motorboat can maintain a constant speed of \( 17 \) miles per hour relative to the water. The boat makes a trip upstream to a certain point in \( 21 \) minutes; the return trip takes \( 13 \) minutes. What is the speed of the current? 

Answer

x=4

Solución
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