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3 years ago

What is 2.6666 as a fraction

Mathematics

1 answer:

Luda [366]3 years ago

7 0

To write 2.6666 as a fraction, write 2.6666 as the numerator with 1 as the denominator.

2.6666/1

Now you multiply numerator and denominator by 10000 to make the numerator a whole number ( no decimals)

26666/10000

Both numbers are even and can be divided by 2:

The fraction becomes: 13333/5000

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What is the expression for calculation the product of 4 and 4 added to double the number 5

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(4*4)

Double the number 5 is equal to

(2*5)

the product of 4 and 4 added to Double the number 5 is equal to

(4*4)+(2*5)

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3 years ago

Bridget reads 5 pages of her book per day 4 days per week for several weeks.

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4 years ago

All the following are equivalent to 2(2a + b ) +8, except ______.

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Answer:

Except 4(a+b+2)

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3 years ago

Find the equation of the tangent line to the curve y=x sqrtx at point (4,8)<br><br> Y=?

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Step-by-step explanation:

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3 years ago

An English teacher needs to pick 1111 books to put on his reading list for the next school year. He has narrowed down his choice

forsale [732]

Answer:

There are 3,659,040 ways he can choose the books to put on the list.

Step-by-step explanation:

There are

12 novels

8 plays

12 nonfiction.

He wants to include

5 novels

4 plays

2 nonfiction

The order in which the novels, plays and nonfictions are chosen is not important. So we use the combinations formula to solve this problem.

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many ways can he choose the books to put on the list?

Novels:

5 from a set of 12. So

$C_{12,5} = \frac{12!}{5!7!} = 792$

Plays:

4 from a set of 8. So

$C_{8,4} = \frac{8!}{4!4!} = 70$

Nonfiction:

2 from a set of 12

$C_{12,2} = \frac{12!}{2!10!} = 66$

Total:

Multiplication of novels, plays and nonfiction.

$T = 792*70*66 = 3,659,040$

There are 3,659,040 ways he can choose the books to put on the list.

4 0

3 years ago