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joja [24]
2 years ago
7

There are 21 books on each of the 4 library tables. The librarian puts half of the books on shelves. How many books are left on

the tables
Mathematics
2 answers:
fiasKO [112]2 years ago
8 0

Answer:

42 books

Step-by-step explanation:

total books = 21×4= 84books

(21/2) × 4 = 21×2 = 42 books on the shelves

remaining books =84-42= 42 books

Levart [38]2 years ago
7 0

Answer:

42

Step-by-step explanation:

I have big brains

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what are the factors of 47 (cuz im STUPID and i dont feel like doing this cuz im working on geogrophy)
Hitman42 [59]

Hey there! I'm happy to help!

The factors are the numbers you multiply to get 47. And they can't be fractions or numbers with fractions. They have to be integers (numbers without fractions).

So far, we see that we can multiply 1 and 47 to get 47. To see if there are any more, we see what numbers 1-10 we can divide by.

We cannot divide by 2 because 47 is odd.

We cannot divide by 3 because it gives us 15.6666...

We can't divide by 4 because 47 is odd.

We can't divide by 5 because 47 does not have a 5 or 0 in the ones place.

We can't divide by 6 because 47 is odd.

We can't divide by 7 because it gives us 6.714285....

We can't divide by 8 because 47 is odd.

We can't divide by 9 because it gives us 5.2222

And we obviously can't divide it by 10.

Therefore, the factors of 47 are 1 and 47. A number whose only factors are 1 and itself is called a prime number.

I hope that this helps! Have a wonderful day! :D

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3 years ago
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Ryan has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin foes he have?​
mafiozo [28]
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4) 8(-2 + 2n) + 3n = 40 +5n
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Answer:

use the distributive property to distribute the 8

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