Question 992033
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C=rate of current
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{{{20/(15+C)=10/(15-C)}}}
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{{{20(15-C)=10(15+C)}}}
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{{{300-20C=150+10C}}}
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{{{150=30C}}}
.
{{{5=C}}}
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ANSWER: The rate of the current is 5 miles per hour.