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Bingel [31]
3 years ago
8

A class sets up 40 chairs. There 8 chairs in each row. How many rows of chairs are there?

Mathematics
1 answer:
Vlada [557]3 years ago
7 0

Answer:

5 chairs

Step-by-step explanation:

because 40 divided by 8 is 5

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Step-by-step explanation:

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4 years ago
Help again and thanks..........
LenKa [72]

Answer:

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Step-by-step explanation:

When the coefficients don't lend themselves to solution by substitution or elimination, then Cramer's Rule can be useful. It tells you the solutions to

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  • dx +ey = f

are ...

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Using that rule here, we find ...

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  s = (41·3 -54·2)/3 = 41 -18·2 = 5

This math can be performed in your head, which is the intent of formulating the rule in this way.

_____

Similarly, if you expect the solutions to be small integers (as here), then graphing is another viable solution method.

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<em>Comment on the question</em>

We're sad to see than only 16 tickets were sold to the two performances by the symphonic band.

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3 years ago
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