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3 years ago

Help me please what number represented by the shaded position

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

6 0

Count the total number of squares.

There are 10 by 10 of them or:

$\sf 10\cdot 10=100$

So there are a total of 100 squares, now count the shaded squares.

$\sf 4\cdot 4=16$

There are 16 shaded squares out of 100, this is a fraction:

$\sf\dfrac{16}{100}=\boxed{\sf 0.16}$

So your answer is C.

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2. Carla's sequence is not arithmetic, because the differences between consecutive terms are all different:

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She can adjust the sequence by changing the last two numbers to 15 and 17, since this makes the difference fixed:

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and so on.

3. The sequence

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We can continue this process to write $a_n$ in terms of $a_1$ :

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