Mathematics, 09.04.2021 17:00 crodriguez87

PLEASE ANSWER ASAP :) A person swims 11 miles downstream in the same time they can swim 7 miles up stream. The speed of the current is 4 miles per hour. These situations can be represented by the equations
Downstream: t=11/s+4 Upstream:t=7/s-4,
where t stands for time and s is the speed of the swimmer. What is the speed of the swimmer swimming in still water?

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PLEASE ANSWER ASAP :) A person swims 11 miles downstream in the same time they can swim 7 miles up s...