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
3241004551 [841]
3 years ago
5

Use the system of equations. Please show your steps and how you solved it!

Mathematics
1 answer:
Alinara [238K]3 years ago
6 0
1. 3x+3y=15
        -3y = -3y (subtract 3y from both sides)
    3x       = 15-3y 
  ----------------------
     3         =  3   3  (divide each number by 3)
      x        = 5- y

    
You might be interested in
How to solve this one​
Stells [14]

Answer:

(-5,1)

Step-by-step explanation:

Add it together

3x - 2x = x

y - y = 0

9 - 14 = -5

x = -5

Choose a random equation, doesn't matter.

3x + y = -14

3(-5) + y = -14

-15 + y = -14

y = -14 + 15

y = 1

7 0
2 years ago
Read 2 more answers
Evaluate:<br> Σ10, 8(27-1) =
vfiekz [6]

Answer:

Step-by-step explanation:

7 0
3 years ago
How many tons are in 448,000 ounces?
777dan777 [17]

Answer: 14

Step-by-step explanation: hope this helps u :)

4 0
3 years ago
Read 2 more answers
The national vaccine information center estimates that 90% of americans have had chickenpox by the time they reach adulthood.50
timama [110]
Given:
 p = 90% = 0.9, the probability that an adult has had chickenpox by age 50.
Therefore,
q = 1 - p = 0.1, the probability that an adult has not had chickenpox by age 50.

Part (a)
Because there are only two answers: "Yes" or "No" to whether an adult has had chickenpox by age 50, the use of the binomial distribution is justified.

Part (b):
Calculate the probability that exactly 97 out of 100 sampled adults have had chickenpox.
The probability is
P₁ = ₁₀₀C₉₇ (0.9)⁹⁷ (0.1)³ = 0.0059

Answer: 0.006 or 0.6%

Part (c)
Calculate the probability that exactly 3 adults have not had chickenpox.
Theis probability is equal to 
P₂ = 1 - P₁ = 1 - 0.006 = 0.994

Answer: 0.994 or 99.4%

Part (d)
Calculate the probability that at least 1 out of 10 randomly selected adults have had chickenpox.
The probability is
P₃ = ₁₀C₀ (0.9)⁰ (0.1)¹⁰ + ₁₀C₁ (0.9)¹ (0.1)⁹ = 10⁻¹⁰ + 10⁻⁹ = 10⁻⁹ ≈ 0

Answer: 0

Part (e)
Calculate the probability that at most 3 out of 10 randomly selected adults have not had chickenpox.
The probability is
P₄ = 1 - [₁₀C₀ (0.9)⁰(0.1)¹⁰ + ₁₀C₁ (0.9)¹(0.1)⁹ + ₁₀C₂ (0.9)²(0.1)⁸ + ₁₀C₃ (0.9)³(0.1)⁷]
     = 1 - (10⁻¹⁰ + 9 x 10⁻⁹ + 3.645 x 10⁻⁷ + 8.748 x 10⁻⁶)
     = 1

Answer:  1.0 or 100%

5 0
3 years ago
Read 2 more answers
PLZ HELP FAST
Gemiola [76]

Answer:

4.6x+15

Step-by-step explanation:

The rate that the gas is being filled into the tank is 4.6x. The gas that is already within the tank at the start of filing is 15 gallons therefore the answer is y=4.6x+15

hope this helps!

-HM

5 0
2 years ago
Read 2 more answers
Other questions:
  • Emily spent 1/2 of her money at the grocery store.Then, she spent 1/2 of what was left at the bakery. Next, at the music store,
    11·1 answer
  • I need help and a right answer.
    14·1 answer
  • the total number of living humans on arth was converted to scientific notation using an online caculation and was reported to be
    11·1 answer
  • Which of the following scenarios represents a combination? The number of ways 30 people can finish in the first 3 positions. The
    12·2 answers
  • Multiply<br> (6x^2-2)^2
    7·2 answers
  • Dennis has jus made the final monthly payment necessary for paying off his car financing
    13·1 answer
  • The school choir is selling fruit boxes to earn money for new robes. The fruit boxes sell for $30
    12·1 answer
  • Can somebody help me solve for x?
    11·1 answer
  • In order for the parallelogram to be a rhombus x = ?
    13·1 answer
  • In a long-distance relay contest, Team A completed the race in 5 2/3 hours, and Team B completed the race in 294 minutes. How mu
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!