OpenStax, Elementary Algebra 2e §5.3 Solve Systems of Equations by Elimination · Exercise 54 · Algebra · Systems

Solve Systems of Equations by Elimination · Exercise 54

Norris can row 3 miles upstream against the current in 1 hour, the same amount of time it takes him to row 5 miles downstream, with the current. Solve the system. ${r - c = 3 r + c = 5$

ⓐ for $r$ , his rowing speed in still water.
ⓑ Then solve for $c$ , the speed of the river current.

~8 minWritten answer · compare with the solution

OpenStax, Elementary Algebra 2e · §5.3 Solve Systems of Equations by Elimination · Exercise 54

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