Mathematics, 08.08.2021 14:00 brookealexis5768

Layla was rowing up the river and noticed it takes longer to row upstream than downstream. She knows that in still water she can row 9 mph. She timed herself rowing approximately 4 miles upstream and then back in 1.5 hours. She then calculated the current of the river. Let c is the speed of the current.
the rate upstream: 9 + c
the rate downstream: 9 - c

Write an equation to find the rate of the current.
c = ___

r*t=d

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Layla was rowing up the river and noticed it takes longer to row upstream than downstream. She knows...

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