Kellen's boat travels 30 mph. Find the rate of the river current if she can travel 4 mi upstream in
the same amount of time she can go 6 mi
downstream. (Let x = the rate of the current.)
Time
Downstream
Upstream
Distance
6
4
Rate
30 + x
30-X
The rate of the river current is

its d but looking at that hurts my eyes frfr

step-by-step explanation:

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its c