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Svet_ta [14]
3 years ago
14

Andy is kayaking on a river in Morgan County, moving down the river at a speed of 10 miles per hour. Meanwhile, Tatsu is on a je

t ski 11 miles away, moving up the river at 20 miles per hour. How long will it be before the two meet? (answer in how many hours and minutes)
Mathematics
1 answer:
posledela3 years ago
7 0
The answer is 22 minutes:

20x for Tatsu and 10x for Andy

30x = 11

x = 11/30

11/30 * 60 = 22
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\underline{\underline{\large\bf{Given:-}}}

\red{\leadsto}\:\textsf{}\sf f(x)= x^2+6x−16

\underline{\underline{\large\bf{To Find:-}}}

\orange{\leadsto}\:\textsf{ x-intercepts of the quadratic function }\sf

\\

\underline{\underline{\large\bf{Solution:-}}}\\

\longrightarrowx- intercept is the point where graph of given function touches the x-axis,f(x) becomes 0 at the point where graph of given function touches the x-axis. Therefore, we would to solve x^2+6x−16=0 and find its root.

\begin{gathered}\\\implies\quad \sf x^2+6x−16=0 \\\end{gathered}

\begin{gathered}\\\implies\quad \sf x^2+8x-2x −16=0 \\\end{gathered}

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2 years ago
An apple sells for 25 cents and a peach sells for 15 cents. A total of 10 fruits were sold for a total of $2.10. How many apples
hammer [34]

Answer:

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Step-by-step explanation:

A = 0.25

P = 0.15

----------------

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0.25A+0.15P=2.10

----------------

I did this: 0.25*10 = 2.50

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Galina-37 [17]

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The two lines can never intersect each other at two points. Two lines intersects only once if they intersect otherwise they are parallel or coincide.

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3 years ago
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