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3 years ago

Geoff earns 10% commission on his total sales at work.

Mathematics

2 answers:

alexandr1967 [171]3 years ago

5 0

Answer:89.5

Step-by-step explanation:

Lelechka [254]3 years ago

3 0

He earned $89.50 on his total sales

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a plane flying with the wind travels 630 mi in 1.5hrs. Flying against the wind , the plane travels 1120 mi in 4hrs. Find the rat

Flauer [41]

$\bf \begin{cases}
r=\textit{rate of the plane}\\
w=\textit{rate of the wind}\\
\end{cases}
\\\\

\begin{array}{ccccllll}
&distance&rate&time(hrs)\\
&\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\textendash\textendash\textendash\\
\textit{with wind}&630&r+w&1\frac{1}{2}\\
\textit{against wind}&1120&r-w&4
\end{array}
$

$\bf thus \begin{cases}
630=(r+w)1\frac{1}{2}\to 630=(r+w)\frac{3}{2}
\\\\
1120=(r-w)4\\
--------------\\
630=(r+w)\frac{3}{2}\implies 630\cdot \frac{2}{3}=r+w\\
420=r+w\implies \boxed{420-w}=r\\
--------------\\
thus\\
--------------\\
1120=(r-w)4\implies 1120=4r-4w
\\\\
1120=4(\boxed{420-w})-4w
\end{cases}
$

solve for "w", to find the wind's speed rate,

so hmmm what's the plane's rate? well 420 - w = r :)

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3 years ago

For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle?

MAVERICK [17]

Answer:

For a rectangle with length 3x+4 and perimeter of 10x+18, what is the width of the rectangle

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3 years ago

My bro’s got me I’m giving brainliest

sergeinik [125]

Answer:

260 I think...?

Step-by-step explanation:

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Pls help me, Me and my mom have been doing this for like 3 hours

Elena-2011 [213]

Answer:

9: -9

10: 18

11: 40

12: -4.5

1st number:-9

2nd number: -180

3rd number: -9

Step-by-step explanation:

I did it on paper but typed it on this stuff so you can understand it

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3 years ago

Read 2 more answers

Solve the given question.

UkoKoshka [18]

19. Hope this helped!

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3 years ago