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igomit [66]
3 years ago
10

You travel 5 miles downstream in a kayak at a speed of r miles per hour. You turn around and travel 6 miles upstream at a speed

of 0.6r miles per hour. Finally, you turn around and return to your original starting point at a speed of r+1 miles per hour.
Mathematics
1 answer:
Vlad1618 [11]3 years ago
3 0
Kyle, d = rt, right? This means that t = d/r. If we call the rate of the current c, then her rate upstream is hindered by the current and is 3 - c. Downstream is 3 + c. The total time is 6 hours... 5/(3 - c) + 5/(3 + c) = 6 Once we put everything over the same denominator, we don't need it anymore. 5(3 + c) + 5(3 - c) = 6(3 - c)(3 + c) 15 + 5c + 15 - 5c = 54 - 6c2
30 = 54 - 6c26c2 = 24c2 = 4c = 2 2 mph 
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

a) x - A student, M - Set of students of discrete math class, G - has lived in, y - Florida, U - Set of states of the United States of America.

A = \{\exists x \in M, \exist y \in U\,|\,xGy \}

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B = \{\exists x \in M,\,\exists y \in H\,|\,xMy \}

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C = \{\forall x \in M\,|\,xI \}

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D = \{\exists x \in M,\,\forall y \in U\,|\,xJy \}

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E = \{\exists x \in M, \forall y \in V, V \subseteq U\,|\,xJy \}

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Answer:

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Step-by-step explanation:

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Therefore 143 gallons is 543.4 liters.

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