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
timurjin [86]
3 years ago
7

X+y=20 3x-3y=30 Which values of x and y satisfy this system of equations?

Mathematics
1 answer:
puteri [66]3 years ago
4 0

x +y = 20 ( rewrite as x = 20-y)

3x - 3y =30

3(20-y) - 3y = 30

60-3y - 3y = 30

60-6y = 30

-6y = -30

y = -30 / -6 = 5

x=20-5 = 15

x = 15, y = 5

You might be interested in
HELP WILL GIVE BRAINLY PL. What is the sign of f3•(-g)^3?
Nastasia [14]

Answer:

Negitive

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PL
nikdorinn [45]

b

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLEASE HELP!! WILL GIVE BRAINLIEST!!
schepotkina [342]

Answer:

Please find attached pdf

Step-by-step explanation:

Download pdf
6 0
3 years ago
I need help thanks so much!!!! You dont have to do both.
Shalnov [3]
1: Bettina's 60, and Melvina's 20.
2: 4.5 gallons
5 0
3 years ago
Read 2 more answers
Which of the following correctly isolates the constant for the polynomial: x2 – 12x + 27
Andru [333]

Answer:

x^2 - 12x = -27

Step-by-step explanation:

Here, we want to isolate the constant for the polynomial

To do this, we start by setting the expression to zero

Afterwards, we can bring the constant term over the equal to sign, giving a change in sign value

Mathematically, we have this as;

x^2 - 12x + 27 = 0

x^2 - 12x = -27

5 0
3 years ago
Other questions:
  • What number would you add to both sides of x2 + 7x = 4 to complete the square?  A.2^2 B.7^2 C, 7^2/2 D.(7/2)^2
    5·1 answer
  • Andrew deposited $500 in a savings account that offers an interest rate of 6.5%, compounded continuously.
    7·2 answers
  • |9x-7|=|6x+3| Solve the inequality
    9·1 answer
  • (2 points) An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans have brown eyes. A
    8·1 answer
  • A rectangle is 2/5 inches long and 1/3 in wide what is the area of the rectangle
    5·2 answers
  • Find the second derivative at the point (1,1), given the function below. 2x^9+1=3y^3
    12·1 answer
  • Anyone please, thanks
    8·2 answers
  • The length of a rectangular rug is 4 less than twice its width. The perimeter of the rug is 40 feet. What is the area of the rug
    10·1 answer
  • The mean (average) weight of three dogs is 38 pounds. One of the dogs, Shaggy, weighs
    5·1 answer
  • Help me find the measure of each missing angle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!