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
otez555 [7]
3 years ago
9

Find the solution of this system of equations.

Mathematics
1 answer:
Tems11 [23]3 years ago
3 0

Answer: x=-21, y=-33

x-y=12,\\18x-12y=18 ( divide by 6)\\3x-2y=3,  2nd Eq.\\multiply- first -equation by 2\\\\2x-2y=24, 1st Eq.\\subtract-the- second -equation- from -first\\2x-3x=24-3,\\-x=21 or x=-21,\\\\substitute-the-value-of -x\\-21-y=12,\\y=-21-12= -33\\

Step-by-step explanation:

You might be interested in
The circle graph shows the percent of the 300 votes each candidate received in the
adell [148]

Answer: 126.

Here is an example of my work, just add your prefered numbers and boom, 126.

Also, mine was 200 instead of 300 and I got 84. So just plug in your number and boom.

6 0
3 years ago
Can you plz solve this ​
Lesechka [4]

Answer:

a) acute angle

b) obtuse angle

c) right angle

d) reflex angle

e) straight line angle

f) acute angle

Step-by-step explanation:

Acute angle

  • angle that is smaller than 90°
  • 0° < θ < 90°

Right angle

  • angle that is 90°
  • shaped of a "L"

Obtuse angle

  • angle that is greater than 90° but smaller than 180°
  • 90° < θ < 180°

Straight line angle

  • angle that is 180°
  • drawn in a straight line

Reflex angle

  • angle than is greater than 180°
  • θ > 180°
8 0
4 years ago
Describe the error in the work shown.
QveST [7]

Answer:

should be xy^4/4

Step-by-step explanation:

next to the last step (x^3(y^3)^4)^1/3

6 0
3 years ago
Please help me with sector math question. I’m desperate!
trasher [3.6K]
Hi there!

Since we know that 36 is 1/10 of 360, all we need to do is divide the total area (85) by 10. This gives us 8.5pi ft^2.

Hope this helps!! :)
3 0
3 years ago
In a certain Algebra 2 class of 30 students, 14 of them play basketball and 10 of them play baseball. There are 14 students who
Veseljchak [2.6K]

Answer:

In a certain Algebra 2 class of 30 students, 22 of them play basketball and 18 of them play baseball. There are 3 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?

I know how to calculate the probability of students play both basketball and baseball which is 1330 because 22+18+3=43 and 43−30 will give you the number of students plays both sports.

But how would you find the probability using the formula P(A∩B)=P(A)×p(B)?

Thank you for all of the help.

That formula only works if events A (play basketball) and B (play baseball) are independent, but they are not in this case, since out of the 18 players that play baseball, 13 play basketball, and hence P(A|B)=1318<2230=P(A) (in other words: one who plays basketball is less likely to play basketball as well in comparison to someone who does not play baseball, i.e. playing baseball and playing basketball are negatively (or inversely) correlated)

So: the two events are not independent, and so that formula doesn't work.

Fortunately, a formula that does work (always!) is:

P(A∪B)=P(A)+P(B)−P(A∩B)

Hence:

P(A∩B)=P(A)+P(B)−P(A∪B)=2230+1830−2730=1330

7 0
3 years ago
Other questions:
  • Oliver is thinking of a number. He multiplies it by 5, subtracts 26, and then divides by 6. He then multiplies his original numb
    6·1 answer
  • Helpppp explainn how to solve it
    14·1 answer
  • How many cubes with 5-inch sides will completely fill a cube that is
    13·1 answer
  • You purchase pair of pants for $34.60 and a shirt for $12.30. If you need to pay 8% sales tax, what is the final price?
    12·1 answer
  • Simplify 3^2/2-4-7/5-4
    12·1 answer
  • What does 1/3+1/4 equal to?
    9·1 answer
  • Which pair shows equivalent expressions?
    8·2 answers
  • The volume of a cone is 800 cubic cm and the radius is 9 cm. Calculate the height.
    7·1 answer
  • PLEASE HELP!!! Name the postulate or theorem that you can use to prove.....
    10·1 answer
  • Pls help i wiill give points
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!