The sun of two number is 23. Their difference is 9. Write a system of equations to represent the situation. What are the two numbers?

Answers

Answer 1

Answer: Let one number be x
and second number be y
ATQ
x + y = 23 ---> 1st equation
similarly,
x - y = 9 ----> 2nd equation
( adding y on both sides )
x = 9 + y -----> 3rd equation
Substituting 3rd equation in 1st equation or substituting value of x in 1st equation.
9 + y + y = 23
( adding like terms on each side)
9 + 2y = 23
( subtracting 9 from both sides)
2y = 23 - 9
2y = 14
( Dividing 2 from both sides )
y = 7

Substituting value of Y in 1st equation
x + 7 = 23
( subtracting 7 from both sides )
x = 16

So, two numbers are 7 & 16
or
x = 16 & y = 7

Hope this helps you :)

Answer 2

Answer: x+y=23
x-y=9
subtract the second from the first and you get 2y=14
Divide 2 from both side so y=7
and since x+7=23, x=16
so the final answer is x=16, y=7

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3. 8(11x + 6) - (5x – 9x^2 - 8)
Compare 1 out of 3 and 3 out of 10. Are these values equal? Explain your reasoning.

What is the solution to this equation? 6(x-3)=3x+9

Answers

Answer:

X = 9

Step-by-step explanation:

6(x−3)=3x+9

(6)(x)+(6)(−3)=3x+9

6x+−18=3x+9

6x−18=3x+9

6x−18−3x=3x+9−3x

3x−18=9

3x−18+18=9+18

3x=27

3x/3 = 27/3

Julia collects colored beads for craft projects. Of Julia’s beads, 49 are silver, 1
5 are gold, and
1
4 are blue. The rest of the beads are red. Which expression gives the closest estimate of the
fraction of red beads Julia has?

Answers

Red beads = 1 - (4/9 + 1/5 + 1/4) = 1 - 161/180 = 19/180

Plz help ZOOM IN TO SEE IT CLEAR

Answers

Answer:

Hey! I think that the answer is maybe A, the first one. 1/11 ^12.

Step-by-step explanation:

There's a good website called M A T H W A Y. I really reccomend it if you're trying to figure out how to do something. You just put in the equation, it solves it for you, and even explains why and how it got that answer.

Answer:

11^4

Step-by-step explanation:

6 neighbors share 4 pies equally. How much of a pie does each neighbor get?