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Step2247 [10]
2 years ago
8

PLEASE SHOW UR WORK i really need help

Mathematics
2 answers:
GalinKa [24]2 years ago
7 0
The answer is C and E
Explanation
The equation in the question is 6n+18
3(2n)+3(3)+9
6n+9+9
6n+18 so C matches
Then E
6n+(27-9)=6n+18 so it also matches
Alchen [17]2 years ago
3 0
First you have to solve the one in the question and if the others match the answer then they are equivalent. Use socratic it will give instant answers for equations and for reading use brainly cuz it’s flashcards and math use brainly bc its 3-5 million questions posted a day
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Solve the simultaneous equations
Contact [7]

Answer:

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

Step-by-step explanation:

Given equations are:

3x+4y=30\ \ \ Eqn\ 1\\3x-y=15\ \ \ \ Eqn\ 2

There are three methods to solve simultaneous equations

  1. Elimination
  2. Substitution
  3. Co-efficient method

We will use the elimination method as the coefficients of x in both equations are already same

Subtracting equation 2 from equation 1

3x+4y - (3x-y) = 30-15\\3x+4y-3x+y = 15\\5y = 15\\\frac{5y}{5} = \frac{15}{5}\\y = 3

Putting y = 3 in equation 2

3x-3 = 15\\3x = 15+3\\3x = 18\\\frac{3x}{3} = \frac{18}{3}\\x =  6

Hence,

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

7 0
3 years ago
Mhanifa please help look at the picture attached
olga55 [171]

Answer:

  • B. (3, 2)

Step-by-step explanation:

<u>Given vertices of triangle:</u>

  • A(1, 2), B(3, 4), C(5, 0)

<u>The centroid is found as the average of x- and y- coordinates of three vertices:</u>

  • C = ((x₁ + x₂ + x₃)/3, (y₁ + y₂ + y₃)/3)

<u>Substitute the coordinates into formula:</u>

  • C = ((1 + 3 + 5)/3, (2 + 4 + 0)/3) = (3, 2)

Correct choice is B

3 0
3 years ago
Read 2 more answers
Find the degree of the polynomial: 5ab^3−7a^5c^2−5
alexandr402 [8]

Answer:

I think its 5

Step-by-step explanation:


6 0
3 years ago
Amy is 5 years older than Ben. Three times Amy's age added to six times Ben's age is 42. How old are Amy and Ben?
I am Lyosha [343]

Answer:

Amy: 8, Ben: 3

Step-by-step explanation:

No explanation here

5 0
3 years ago
PLEASE HELP!
Anna35 [415]
Increasing. For every week that goes by, Olivia's puppy is gaining one pound. 6-5= 1  14-13= 1. Gaining a pound every week makes the puppies weight increase. Since increase is the term for something is bigger than number or value than before, Olivia's puppies' weight is increasing. 

I hope this helps!
~kaikers
6 0
3 years ago
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