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bagirrra123 [75]
3 years ago
8

BRAINLIEST YOU WILL GET BRAINLIEST

Mathematics
2 answers:
Anna [14]3 years ago
7 0

Answer: B

Step-by-step explanation:

The correct answer is B because You are using distributive property of multiplication, which is like the Answer B.

* Hopefully this helps:) Mark me the brainliest:)

Ierofanga [76]3 years ago
7 0

Answer:

BBBBBBBBBBBBBBBBBB

Step-by-step explanation:

You might be interested in
Help me please!!!!!!!!
velikii [3]

Answer:

(5x-1)(3x+2)

(if you don't want to do all of this you can use

Step-by-step explanation:

((3•5x2) +  7x) -  2

Factoring  15x2+7x-2

The first term is,  15x2  its coefficient is  15 .

The middle term is,  +7x  its coefficient is  7 .

The last term, "the constant", is  -2

Step-1 : Multiply the coefficient of the first term by the constant   15 • -2 = -30

Step-2 : Find two factors of  -30  whose sum equals the coefficient of the middle term, which is   7 .

     -30    +    1    =    -29

     -15    +    2    =    -13

     -10    +    3    =    -7

     -6    +    5    =    -1

     -5    +    6    =    1

     -3    +    10    =    7    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -3  and  10

                    15x2 - 3x + 10x - 2

Step-4 : Add up the first 2 terms, pulling out like factors :

                   3x • (5x-1)

             Add up the last 2 terms, pulling out common factors :

                   2 • (5x-1)

Step-5 : Add up the four terms of step 4 :

                   (3x+2)  •  (5x-1)

            Which is the desired factorization

7 0
3 years ago
Read 2 more answers
Six friends order lunch. Write an expression that shows the total cost if each person orders on sandwich and one cookie.
vodka [1.7K]
4.75×6=28.5
6 cookies= 6x
The expression is 6x+28.5

8 0
4 years ago
In a survey, the ratio of the number of people who preferred tea to those who preferred coffee was 9:5
kodGreya [7K]

Answer:

45 people prefered coffee, 81 people prefered tea. A total of 126 people were surveyed.

Step-by-step explanation:

Let t be the people who prefer tea, and let c be the people who prefer coffee.

The ratio between tea and coffee is 9:5, thus we have t/c=9/5. Cross products  give us 5t=9c.

Also, we have 36 more people prefer tea than coffee, so we have c+36=t

Thus we have: 5(c+36)=9c

5c+180=9c

180=4c

c=45

c+36=t

45+36=81

5 0
4 years ago
The number of students in a class is 60. The number of boys is seven-fifths the number of girls. Find the number of boys in the
Fynjy0 [20]

Step-by-step explanation:

Let the number of girls = x

Therefore, no. of boys = \frac{7}{5} \times x

\because \: no \: of \:  boys + no \: of \: girls \:  = 60 \\  \\  \therefore \:  \frac{7}{5} x + x = 60 \\  \\ \therefore \:  \frac{7x + 5x}{5} = 60 \\  \\  \therefore \:  \frac{12x}{5} = 60 \\  \\  \therefore \: x = 60 \times  \frac{5}{12}  \\  \\ \therefore \: x = 5 \times 5 \\  \\ \therefore \: x = 25  \\  \\  \therefore \:  \frac{7}{5} x =  \frac{7}{5}  \times 25 = 7 \times 5 = 35 \\

Thus, no of boys in the class is 35.

3 0
3 years ago
Which graph represents a positive linear association between x and y?
Ierofanga [76]
Graph A shows a positive linear association between x and y.
5 0
4 years ago
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