4 years ago

How many 1-inch cubes do you need to create a cube with an edge length of 5 inches?

Mathematics

1 answer:

REY [17]4 years ago

3 0

125, 1 - inch cubes.

$5^{3}$
Height = 5
Width = 5
Length = 5

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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".

what about "y"? well, y = 240 - x

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3 years ago

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E. 72
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4 years ago

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erastova [34]

11 L : 20 mL
I believe but that was quick mental math

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