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
Travka [436]
3 years ago
13

1.) 2x + y = 3 2.) x - 2y = -1 If equation 1 is multiplied by 2 and then the equations are added, the result is

Mathematics
1 answer:
Alexus [3.1K]3 years ago
5 0
3×2=6
6+(-1)=6-1=5
The answer is 5
You might be interested in
What is the solution to the system of equations?
rosijanka [135]

Step-by-step explanation:

3x - 6(2x + 4) = 3

3x - 12x + 24 = 3

-9x + 24 = 3

-9× = -21

x = 2.33

7 0
2 years ago
A lottery game has balls numbered 1 through 21. What is the probability of selecting an even numbered ball or an 8? Round to nea
Viktor [21]

Answer: 0.476

Step-by-step explanation:

Let A = Event of choosing an even number ball.

B = Event of choosing an 8 .

Given, A lottery game has balls numbered 1 through 21.

Sample space: S= {1,2,3,4,5,6,7,8,...., 21}

n(S) = 21

Then, A= {2,4,6,8, 10,...(20)}

i.e. n(A)= 10

B= {8}

n(B) = 1

A∪B = {2,4,6,8, 10,...(20)} = A

n(A∪B)=10

Now, the probability of selecting an even numbered ball or an 8 is

P(A\cup B)=\dfrac{n(A\cup B)}{n(S)}

=\dfrac{10}{21}\approx0.476

Hence, the required probability =0.476

7 0
3 years ago
IS THE ANSWER A??? please explain​
Ne4ueva [31]

Step-by-step explanation:

D. must be the richt answer.

(x - Px)^2 + (y - Py)^2 = r^2

Where P(Px | Py) is the center of the circle.

If you insert one point of the circle, the equation must be true.

3 0
3 years ago
What is 8c squared + 7c
MariettaO [177]
(8c)^2+7c
(8c)^2=64c^2
so that..

64c^2+7c
factor out c
c(64c+7)
8 0
2 years ago
A shipment of sugar fills 14 containers. If each container holds 2 1/4 tons of sugar, what is the amount of sugar in the entire
SashulF [63]

You would do 14*2 1/4 so that would be 31.5

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help!! Will put most brainliest!! Picture inserted
    6·1 answer
  • Simplify the expression. 2 · 16 + 24 ÷ 4 80 38 134
    6·2 answers
  • What are the measures of two complementary angles if the difference in their measures is 18?
    10·1 answer
  • Need answer please !!!!!!!! A sports company is shipping softballs to its distribution centers. Each softball is in a square box
    14·1 answer
  • In 375.691 what digit is in the hundredths place
    15·2 answers
  • PLEASE HELP! 25 POINTS AND BRANLIEST!!!!!! Find the sum of the series. Include each term that leads to the final sum and show th
    7·1 answer
  • The ages of people on a jury are 41,45,39,56,48,45,42,34,47,62,35, and 58. Make a stem-and-leaf plot of the data.
    9·2 answers
  • A solution for direct IV bolus injection contains 125 mg of drug in each 25 mL of injection. What is the concentration of drug i
    10·1 answer
  • The coach has to select 2 co-
    15·1 answer
  • Is the percent increase from 50 to 70 equal to thhe percent decease from 70 to 50
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!