2 years ago

(2 1/2)× -8=what is 2 1/2 * -8 equal to

Mathematics

2 answers:

VARVARA [1.3K]2 years ago

5 0

I would say your answer is -84
Hope this helps!

Jlenok [28]2 years ago

3 0

It is -20. try doing it on a calculator!

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A "child has six blocks, three of which are red and three of which are green". How many patterns can shemake by placing them all

makvit [3.9K]

Answer: There are 20 ways and 1680 ways respectively.

Step-by-step explanation:

Since we have given that

Total number of blocks = 6

Number of red blocks = 3

Number of green blocks = 3

So, Number of patterns she can make by placing them all in a line is given by

$\dfrac{6!}{3!\times 3!}\\\\=20$

If there are 3 white blocks

so, total number of white blocks becomes 9

So, Number of total pattern she can make by placing all nine blocks in a line is given by

$\dfrac{9!}{3!\times 3!\times 3!}\\\\=1680\ ways$

Hence, there are 20 ways and 1680 ways respectively.

6 0

2 years ago

−28=19 solve to this question

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Answer:

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Step-by-step explanation:

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Sergio039 [100]

Answer:

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Step-by-step explanation:

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