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JulijaS [17]
3 years ago
13

A boat takes 8 hours to go 6 miles upstream and come back to the starting point. If the speed of the boat is 4 miles per hour in

still water, what is the rate of the current?
Mathematics
1 answer:
Serhud [2]3 years ago
8 0
I worked on this for a while and couldn't get the answer.
Here's an answer I found by trial and error: rate of the current = 3.1625


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<em>4x-79=3x-29</em>

<em>Move the terms with "x" on the left, and the numbers on the right.</em>

<em>4x-3x=79-29</em>
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See below ~

Step-by-step explanation:

⇒ 65 = 65 + y (alternate exterior angles)

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Step-by-step explanation:

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The vertex of the quadratic function is:

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Step-by-step explanation:

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f\left(x\right)=x^2+6x+16

As the vertex of the form y=ax^2+bx+c is defined as:

x_v=-\frac{b}{2a}

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