All categories

3 years ago

What number sentence is true?

Mathematics

1 answer:

meriva3 years ago

5 0

D would be true because if you think about it in percentage wise
2/8= 25%
2/3=66.66%
2/3 is automatically greater than 2/8
Hope this helps :)

You might be interested in

Solve: 10c + 20 = 40 c =

Dvinal [7]

C= 2

...................................

8 0

3 years ago

The given expression represents the area. Find the side length of the square 36x^2+60x+25

lorasvet [3.4K]

36x^2+60x+25 = (6x + 5)^2

A = (6x + 5)(6x + 5)

answer

side length = 6x + 5

4 0

3 years ago

Read 2 more answers

•) Find the sum. -3 1/3 + (-1 2/3)

Alja [10]

Answer: 14.33

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Tim must read 2 books from a list of 7 recommended books for his summer reading program. In how many different ways can Tim choo

Marianna [84]

There are 21 ways Tim choose 2 books from the 7 recommended book

Solution:

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

To find: different ways can Tim choose 2 books from the 7 recommended books

This is a combination problem

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

The formula for combinations is:

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

where n represents the number of items, and r represents the number of items being chosen at a time

Here we have to choose 2 books from 7 books

Therefore, n = 7 and r = 2

Substituting values in above formula, we get

$\begin{aligned}&7 C_{2}=\frac{7 !}{2 !(7-2) !}\\\\&7 C_{2}=\frac{7 !}{2 ! \times 5 !}\end{aligned}$

For a number n, the factorial of n can be written as,

$n !=n \times(n-1) \times(n-2) \dots \dots \times 2 \times 1$

Therefore, we get

$7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21$

Thus there are 21 ways Tim choose 2 books from the 7 recommended book

7 0

3 years ago

Factor -3x - 3y - 3z. 3(-x – y + z) 3(x - y - z) -3(x + y + z) -3(x - y - z)

abruzzese [7]

3rd option is the correct answer

8 0

3 years ago

Read 2 more answers