2 years ago

Factorise fully10c + 25

Mathematics

1 answer:

liq [111]2 years ago

8 0

Answer:

5(2c+5)

I hope this helps

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Answer is provided in the image attached.

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A bag holds 1 blue block and 3 yellow blocks. How many green blocks should be added to the bag to make the probability of random

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$n$ - the number of green blocks which is equal to the number of favourable events
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$P(A)=\dfrac{n}{4+n}=\dfrac{1}{2}\\
1\cdot( 4+n)=2\cdot n\\
4+n=2n\\
2n-n=4\\
n=4
$