Mathematics: URGENT please solve number 12 it’s due at 11:59 tonight thanks

URGENT please solve number 12 it’s due at 11:59 - id12115911076098, teasleycarl53

Ответ:

ptrlvn01

10.02.2021

Mathematics

Step-by-step explanation:

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Ответ:

Chrissyx4750

11.12.2020

Mathematics

Again, we'll proceed the same way here.

so, the plane with a rate of "x" and the wind with a rate of "y", goes for 120 miles at a rate of "x + y", because is going with the wind, for 0.75 hours.

whilst against the wind, it goes slower at "x - y", for the same 120 miles, for 1hour.

$\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{with wind}&120&x+y&0.75\\
\textit{against wind}&120&x-y&1
\end{array}
\\\\\\
\begin{cases}
120=0.75(x+y)\\
120=1(x-y)\\
----------\\
0.75(x+y)=1(x-y)
\end{cases}$

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URGENT please solve number 12 it’s due at 11:59 tonight thanks

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