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andreyandreev [35.5K]
3 years ago
5

Also this one as well :) I’m struggling pls help

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0

Answer:

A,C,E

Step-by-step explanation:

x+4          6

------- ÷ ---------

3             x

Copy dot flip

x+4          x

------- * ---------  (A)

3             6

Reversing the order

x          x+4

------- * ---------  (C)

6             3

x(x+4)

------------

18

x^2+4x

--------------(E)

18

You might be interested in
7x-2y=16 11x+6y=32.3<br>how to solve this math problem​
Aneli [31]

Answer:

Step-by-step explanation:

These types of equations are called simultaneous equations and the method we can use to solve these type of equations is either Substitution, Elimination and Graphing.

We use substitution here because it is easier.

Equation 1

7x-2y=16

Equation 2

11x+6y=32.3

Lets take equation 1

7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}

This is our equation 3 , now put it inside equation 2.

11x+6y=32.3\\11(\frac{16+2y}{7} )+6y=32.3\\\frac{176+22y}{7} +6y=32.3\\\frac{176+22y+42y}{7}=32.3\\176+22y+42y=226.1 \\\\42y+22y=226.1-176\\64y=50.1\\y=\frac{50.1}{64} \\y=0.783\\

We found the value of y , now to find the value of x insert the value of y in equation 3

x=\frac{16+2y}{7}\\x=\frac{16+2(0.783)}{7} \\x=\frac{16+1.566}{7}\\x=\frac{17.566}{7}\\x=2.509

Solved ! See the attached image on both the straight line graphs i have attached for better understanding. Where both the lines intersect each other is our value of (x , y) respectively.

6 0
2 years ago
I dont get what b) means/asking. someone help pls
GenaCL600 [577]
The question is asking.. Of the total income that Madeleine gets, what percent of it goes to Madeleines expenses.
The way you solve this is divide the total expenses by the total income and multiply by 100.

1840/2020= .9109      .9109*100= 91.09%
8 0
3 years ago
Help with math please ​
MA_775_DIABLO [31]

Answer:

B

Step-by-step explanation:

its kinda obvious

5 0
3 years ago
I think its B can I get someone's opinion. Its not too hard. Plzzz Help.
shusha [124]

Answer:

I agree with you,I also think its B

Step-by-step explanation:

8 0
3 years ago
Let m = X^2 + 3.
Tpy6a [65]

The Equation in terms of m, m^2+7m+10=0

What is substituting in the equation ?

substituting means changing or replacing the values in the given equation.

Calculation:

Given equation is (x^2+3)^2+7x^2+21=-10

            and m= X^2 + 3.

make the given equation in the form X^2 + 3,

             now,

                     (x^2+3)^2+7x^2+21=-10

                     (x^2+3)^2+7(x^2+3)=-10

             where,

                      X^2 + 3= m

              after putting the value or replacing the values

             we get, m^2+7m=-10

                      m^2+7m+10=0

          the above equation is in the form of "m".

The Equation in terms of m, m^2+7m+10=0

Leran more about substitution here:

brainly.com/question/24094293

#SPJ1

4 0
1 year ago
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