All categories

2 years ago

BRAINLIEST TO PERSON WHO HELPS

Mathematics

2 answers:

stealth61 [152]2 years ago

8 0

Answer:

Step-by-step explanation:

Let's think about what does the given info mean.

Because of n notebooks, she spent $52

One notebook is $3.25.

So 3.25n = 52

Take it this way if you don't understand

Let's say I spent 4$ on two (2) pens

What's the value of one pen?

We want to find the value of one pen and then multiply it by 2, to get 4$

So we normally would do 4/2

However, to set up an equation, we would create

v (value of one pen) x 2 (pens) = 4$ (cost)

v = 4$/2 = 2$

Effectus [21]2 years ago

4 0

Answer:

B. 52= 3.25n

Step-by-step explanation:

Unit price multiplied by quantity equals total. So, each notebook cost $3.25 and she buys 'n' notebooks.

She totally spends $52.

In conclusion, 3.25 (unit price × n [quantity]) = 52.

And that is.. 52 = 3.25n.

You might be interested in

-3x = 18 What is x? x=

lorasvet [3.4K]

Answer:

x=15

Step-by-step explanation:

18-3=15

7 0

3 years ago

Read 2 more answers

Please give me the correct answer and please explain how you found the answer

lidiya [134]

Answer:

x=48

Step-by-step explanation:

to get x alone, you have to multiply both sides by 2, and 24 times 2 is 48

plz brainliest :)

8 0

3 years ago

What is the domain and range of the relation shown in

Leya [2.2K]

Answer:

Domain : {10, 15, 19, 32}

Range: {-1, 5, 9}

Step-by-step explanation:

As the table of the relation is given as follows:

X Y

10 5

15 9

19 -1

32 5

From this table, we can define the relation by combining the ordered pairs from the table. Each and every order pair consists of x-coordinate and corresponding y-coordinate of any corresponding point.

So, the relation from the table can be made as follows:

relation : {(10, 5), (15, 9), (19, -1), (32, 5)}

Domain of a relation consists of all the x-coordinates (first elements) of order pairs.

Range of a relation consists of all the y-coordinates (second elements) of ordered pairs.

So, domain and range of relation will be as follows:

Domain : {10, 15, 19, 32}

Range: {-1, 5, 9}

Note: If there is any duplicate element in any x or y-coordinate of any ordered pair, it will be written only once when we determine domain and range. Here, in this example, 5 is duplicate, so, it will be mentioned only one time when we determine the range of this relation.

Keywords: domain, relation, range

Learn more about domain and range of a relation from brainly.com/question/11422136

#learnwithBrainly

6 0

3 years ago

An English teacher needs to pick 9 books to put on his reading list for the next school year, and he needs to plan the order in

Nikitich [7]

Answer: $4.37\times10^3$

Step-by-step explanation:

Given : Number of choices for novels = 4

Number of choices for plays = 6

Number of choices for poetry books = 5

Number of choices for nonfiction books = 5

Total books =4+6+5+5=20

If he wants to include all 4 novels, then the number of books left to select = 9-4=5

Remaining choices for books = 20-4=16

Number of combinations of n things taking r at a time : $\dfrac{n!}{r!(n-r)!}$

Then, the number of different reading schedules are possible :_

$^4C_4\times^{16}C_5\\\\=\dfrac{4!}{4!(4-4)!}\times\dfrac{16!}{5!(16-5)!}\\\\=(1)\times\dfrac{16\times15\times14\times13\times12\times11!}{120\times11!}\\\\=4368=4.368\times10^3\approx4.37\times10^3$

Hence, the required answer is $4.37\times10^3$ .

8 0

3 years ago

What is the reciprocal of 2⅜

Fittoniya [83]

Answer:

8/19

Step-by-step explanation:

Use this rule: a b/c=ac+b/c

2x8+3/8

5 0

3 years ago