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
VLD [36.1K]
2 years ago
8

Solve the system of equations by using substitution.

Mathematics
1 answer:
Nat2105 [25]2 years ago
5 0

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

y = 2x +3  ----(1) \\\\y =  x + 2 ----(2)\\\\substitute \ (2) \ in \ (1) : x + 2 = 2x + 3

x - 2x = 3 - 2\\\\-x = 1\\\\x = -1\\\\Substitute \ x = -1 \ in  \ (2) : y = -1 + 2 => y = 1

You might be interested in
Ellen has a bag with 3 red marbles and 2 blue marbles in it. She is going to randomly draw a marble from the bag 300 times, putt
sweet [91]

Answer:

No. of times Ellen draws a blue marble = 120

Step-by-step explanation:

No. of red marbles = 3

No. of blue marbles = 2

\text{Probability of drawing a blue marble = }\frac{\text{No. of possible outcomes}}{\text{Total no. of outcomes}}\\\\P(B)=\frac{2}{5}\\\\No. of draws (n) = 300\\\text{So, total probability = }n\times P(B)\\\\=100\times \frac{2}{5}=120.

So, the required probability is 120.

7 0
3 years ago
Read 2 more answers
The price of 3 books is Rs.330 . How many such books can be bought for Rs.550 ?
AysviL [449]
330/3= 110
550/110=5

Answer is 5 books
5 0
3 years ago
Read 2 more answers
Whats the square root of 39 to the nearest whole
Rasek [7]
The square root of 39 is 6.224
5 0
3 years ago
The radius of a circle is 11 feet. What is the circle's area? Use 3.14 for ​
vovikov84 [41]

Answer:

Formula for area of a circle;

<u>A = πr^2</u>

where pi is 3.14 in this case, and r is the radius squared

Plug in the actual values;

A = 3.14 x 11^2

A = 3.14 x 121

A = 379.94 square feet

7 0
2 years ago
A fair die is rolled once. Let A be the event of rolling an even number, and let B be the event of rolling a number greater than
IRISSAK [1]

Answer:

A ∩ B = {4, 6}

Step-by-step explanation:

A die had 6 faces

S = {1, 2, 3, 4, 5, 6}

If A  be the event of rolling an even number, then;

A = {2, 4, 6}

If B be the event of rolling a number greater than 3, then;

B = {4, 5, 6}

A ∩ B are the values that are common to both sets

A ∩ B = {4, 6}

3 0
2 years ago
Other questions:
  • 6300 and 530,<br> 3 and 2 underlined <br> Compare value<br><br> The value 3 in____ is _____times
    11·1 answer
  • The sum of three consecutive even numbers is 66. What is the smallest of these numbers?
    9·1 answer
  • How do credit card companies determine their aprs??
    11·2 answers
  • Kristen owns 61 shares of Prince Waste Collection and 45 shares of Nar Heating/Cooling. Nar Heating/Cooling is worth $7.88 per s
    5·2 answers
  • Adian bought 9 pounds of hamburger meat. how many 1/3 pound burgers can he make?
    10·1 answer
  • How do I solve this question?
    14·2 answers
  • Solve 3[-x + (2x+ 1)] =X- 1.<br> x= ?
    7·1 answer
  • I will mark you brainlist!
    15·1 answer
  • The graph of g(x) is a translation of y = RootIndex 3 StartRoot x EndRoot.
    9·2 answers
  • If 75% of a number is 165 and 10% of the same number is 22, find 85% of that number.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!