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scoundrel [369]
3 years ago
11

If andrew divides his cards into groups of 9 and ends up with 6 groups how many cards does he have?

Mathematics
2 answers:
Serjik [45]3 years ago
5 0
He would have 54 because 54 divided by 9 equals 4.
vodka [1.7K]3 years ago
3 0
If there are 6 groups of 9 then he had 54 cards because 6*9=54
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<h3>Answer:</h3>

\huge{\boxed{n=-4}}

<h3>Explanation:</h3>

\begin{array}{cc}\begin{flushright}\text{Divide both sides of the equation by 3.}\end{flushright}&\begin{flushleft}-4n-9=7\end{flushleft}\\\begin{flushright}\text{Add 9 on both sides.}\end{flushright}&\begin{flushleft}-4n=16\end{flushleft}\\\begin{flushright}\text{Divide both sides by -4.}\end{flushrigh}&n=-4\end{array}

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gogolik [260]

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300*80 + 300*9 + 300*0.1 + 25*80 + 25*9 + 25*0.1

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Then the list of six multiplications involved in solving this problem are:

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Now we add all of those and get:

325*89.1 = 24,400 + 2,700 + 30 + 2,000 +  225 + 2.5 = 28,957.5

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Answer :

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