1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dmitriy555 [2]
3 years ago
12

Systems of equation:substitution

Mathematics
1 answer:
Igoryamba3 years ago
6 0

Step-by-step explanation:

8)

describe y in terms of x

y=5+x

so now replace y with terms of x

5+x+3x=37

4x=32

x=8

y=13

9)

do the same here

x=y+1

2y+x=19

2y+y+1=19

3y=18

x=6

y=7

You might be interested in
Some one help me !!!!
Sladkaya [172]

Answer: I cant see image!!!

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve. x2 + 14 = 9x A) x = 2, x = 7 B) x = 3, x = 5 C) x = −2, x = −7 D) x = −3, x = −5
chubhunter [2.5K]

Answer:

A) x = 2, x = 7

Step-by-step explanation:

x^2 + 14 = 9x

Subtract 9x from each side

x^2-9x + 14 = 9x-9x

x^2-9x + 14 = 0

What 2 numbers multiply to 14 and add to -9

-7*-2 = 14

-7+-2 = -9

(x-7)(x-2) = 0

Using the zero product property

x-7 = 0   x-2 =0

x=7   x=2

7 0
3 years ago
Write the equation of a circle for which the endpoints of a diameter are (-2,-2) and (4,-10)
Maurinko [17]

Answer:

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

Step-by-step explanation:

Given:

End point of Diameter be

point A( x₁ , y₁) ≡ ( -2 ,-2 )

point B( x₂ , y₂) ≡ ( 4 , -10 )

To Find:

Equation of a circle =?

Solution:

When end points of the Diameter are A( x₁ , y₁) , B( x₂ , y₂). then the Equation of Circle is given as

(x-x_{1})(x-x_{2})+(y-y_{1})(y-y_{2})=0

Substituting the end point are

(x-(-2))(x-4)+(y-(-2))(y-(-10))=0\\(x+2))(x-4)+(y+2))(y+10))=0\\

Applying Distributive Property we get

x^{2} -2x-8+y^{2}+12y+20 =0\\\\x^{2}+y^{2}-2x+12y+12=0

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

6 0
2 years ago
Standardization of Normal Distribution is the process of
n200080 [17]

Answer:

Step-by-step explanation:

Standardizing a normal distribution is to convert a normal distribution to the standard normal distribution. In real-world applications, a continuous random variable may have a normal distribution with a value of the mean that is different from 0 and a value of the standard deviation that is different from 1.

7 0
2 years ago
Can y'all help me with this?
Ainat [17]

Answer: I believe it is B


3 0
3 years ago
Other questions:
  • A company has 875 employees. "Half - Price Wednesday," 64% of the employees eat lunch at the company cafeteria. How many employe
    9·2 answers
  • The lines of the equations are parallel, perpendicular, or neither. y = 2x + 3 y = 2x 1)parallel
    10·1 answer
  • If x+ 1=23 what is the value of 3x +3?
    7·1 answer
  • Can someone please help me!!!
    7·2 answers
  • Allison bought three pounds of strawberries for $19.20. What is the price, in dollars per ounce of strawberries?
    12·2 answers
  • Sunil receives a 20% discount on a concert ticket that costs $75. If Sunil pays $3.30 in sales tax on the discounted ticket, wha
    13·1 answer
  • Compare the processes for finding common denominators for two, three and four fractions please help
    11·1 answer
  • Find the value of of x sin(4x+30)°=cos(-2x+54)°
    9·1 answer
  • PLS HELLPPP thank u
    9·1 answer
  • How many solutions does this system have?<br> -6x + 18y = 264<br> -12x - 36y= 130
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!