Mathematics: The speed of a stream is 4 mph a boat travels 3 miles upstream in the same time it takes to travel 11 miles downstream what is the speed of the boat in stillwater

The speed of a stream is 4 mph a boat travels

Ответ:

lauramount

03.01.2022

$\bf \begin{array}{lccclll}
&distance&rate&time\\
&-----&-----&-----\\
upstream&3&r-4&t\\
downstrea&11&r+4&t
\end{array}\\\\\\ recall\implies d=rt\\\\
-----------------------------\\\\

\begin{cases}
3=(r-4)(t)
\\\\
11=(r+4)(t)\\
--------------\\
3=(r-4)(t)\to \frac{3}{r-4}=\boxed{t}\qquad thus
\\\\
11=(r+4)(t)\to 11=(r+4)\left( \boxed{\frac{3}{r-4}}\right)
\end{cases}$

solve for "r"

0,0(0 оценок)

Ответ:

trueeriksonweav

02.03.2023

Mathematics

3.06 I think hope it helps

0,0(0 оценок)

The speed of a stream is 4 mph a boat travels 3 miles upstream in the same time it takes to travel 11 miles downstream what is the speed of the boat in stillwater

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question