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tatiyna
3 years ago
6

Help me please!! thank you!

Mathematics
1 answer:
pychu [463]3 years ago
6 0

Answer:

45.5cm

Step-by-step explanation:

70/20 = 3.5cm per book

20- 7 = 13

13 x 3.5 = 45.5cm

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It would be 7:8. Hope that helps.
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murzikaleks [220]

Answer:

3.625 is ans

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A coin is flipped twice. What is the probability that it will come up once heads and once tails
Illusion [34]

1/2 or 50%, because there are two possibilities out of four.

If you think about flipping a coin twice, there are exactly four possible outcomes:

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3 years ago
Two lengths of a triangle are show ​
leonid [27]

I can't give you the correct answer but you can guess for it, cause I can give you the the scop of the length of KL.

So, as we know this;

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3 years ago
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nevsk [136]

Answer: Option C)1 over 15 minus 1 over x equals 1 over 20

Explanation:

Since, Micah can fill a box with books in 15 minutes.

Therefore, the work done by Micah in one minute= 1/15

Also, Sydney takes the books out puts them on a shelf.

And the times taken by Micah when Sydney is also taking the books outside from the self= 20 minutes

Therefore, the work done by Micah in one minute when Sydney  taking books out of the box= 1/20

Let Sydney alone takes x minutes to take books outsides the shelf.

Then, work done by Sydney in one minute=1/x

Thus, the work done by Sydney( by taking books out of the box)=  the work done by Micah - work done by Micah and Sydney simultaneously= 1/15-1/20

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Therefore, Option C is correct.



4 0
3 years ago
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