3 years ago

PLEASE HELP !!! ILL GIVE BRAINLIEST!! DONT SKIP ILL GIVE 40 POINTS.

Mathematics

2 answers:

Radda [10]3 years ago

4 0

Answer:

it goes up by 9 and a half

Vikki [24]3 years ago

4 0

It goes up by 4.5 (I’m pretty sure this is correct)

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mote1985 [20]

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2 years ago

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A person wishes to mix coffee worth nine dollars per pound with coffee worth three dollars per pound to get 240 pounds of a mixt

Anastasy [175]

$\bf \begin{array}{lccclll}
&amount&price&priced\ amount\\
&-----&-----&--------\\
\textit{9 bucks/lb}&x&9&9x\\
\textit{3 bucks/lb}&y&3&3y\\
-----&-----&-----&-------\\
mixture&240&5&1200
\end{array}
\\\\\\
\begin{cases}
x+y=240\implies \boxed{y}=240-x\\
9x+3y=1200\\
----------\\
9x+3\left( \boxed{240-x} \right)=1200
\end{cases}$

solve for "x".

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3 years ago

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2 years ago

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