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
Jobisdone [24]
3 years ago
15

Solve each system using elimination.

Mathematics
2 answers:
Tema [17]3 years ago
5 0
Https://www.mathpapa.com/algebra-calculator.html
Sorry i cant answer im in a hurry! BUT ITS A GREAT ALGEBRA CALCULATOR!
Artyom0805 [142]3 years ago
5 0
A) 3x + 3y = 27 ----- (1) 
 x - 3y = -11-------(2)
 Multiplying (2) by 3 we have 3x - 9y = -33 ----(3)
 Subtracting (3) from (1) we have 
 -9y - 3y = -33 - 27
 So y = 5. Substituting value of y into (1) we have 3x + 3(5) = 27. So x = 27 -
15/ 3 = 4.
 B) Also 2x + 4y= 22 ----(1)
  2x - 2y= -8 -----(2)
 Subtracting (2) from (1) we have 
 -2y - 4y = -8 - 22 = -30
 -6y = - 30. Hence y = 5. Substituting into (1) we have 2x + 4(5) = 22. X = 22 - 20/2 = 1
 C) 5x - y = 0 -------(1)
  3x + y = 24 ------(2)
 Adding (2) to (1) we have 
 3x + 5x = 24. X = 24/8 = 3. So y = 5(3) - y = 0. y = 15
You might be interested in
Jerry has been staying up late at night to get in some extra study time. He hopes to get accepted into his favorite college and
svet-max [94.6K]
(Answer coming from someone who’s stressed himself)
Upset stomach.
When you’re stressed, you have a higher heart rate, difficulty sleeping, and feeling exhausted the whole day.
3 0
3 years ago
Read 2 more answers
Trigonometry
Alla [95]

90° is equal to  \frac{\pi}{2} or 1.5707 radians.

Step-by-step explanation:

Step 1:

If an angle is represented in degrees, it will be of the form x°.  

If an angle is represented in radians, it will be of the form \frac{\pi}{x} radians.

To convert degrees to radians, we multiply the degree measure by \frac{\pi}{180}.

For the conversion of degrees to radians,

the degrees in radians = (given value in degrees)(\frac{\pi}{180}).

Step 2:

To convert 90°,

90 (\frac{\pi}{180} ) = \frac{\pi}{2}.

0.5 \pi = 1.5707 radians.

So 90° is equal to \frac{\pi}{2} or 1.5707 radians.

3 0
3 years ago
Alexander makes a model of the Great Pyramid of Giza with the dimensions shown.
Leviafan [203]

Answer:

The area of the square base is 100 in.2.

The area of each triangular face is 40 in.2.

Alexander will need 260 in.2 of paint.

Step-by-step explanation:

I dan't have an explanation I just guessed.

7 0
3 years ago
What is the length of the hypotenuse of a right triangle that has sides measuring 12 cm and 35 cm
Westkost [7]
The measurement is 37 cm
3 0
3 years ago
Read 2 more answers
Of 12 eggs in a refrigerator 5 are rotten. From these 4 eggs are chosen at random to make a cake. What is the probability that a
attashe74 [19]
This could be a trick question. Based on the wording of the question “from these”, it would infer that the eggs are selected from rotten ones. This is a dangling participle.

So, the trick question answer is 0% that exactly one is rotten and 100% that All are rotten.

6 0
3 years ago
Other questions:
  • Find the slope between points (4, 6) and (-2, 6).
    14·1 answer
  • 5.
    5·1 answer
  • The amount of a chemical solution is measured to be 2 liters. What is the percent error of the measurement?
    12·1 answer
  • NEED HELP ASAP ALGEBRA 2​
    10·2 answers
  • 6 ÷ 3 + 32 · 4 − 2 A. 36 B. 98 C. 22 D. 42
    5·1 answer
  • The question is in the picture​
    10·1 answer
  • Hehejdkekldmtkskdmfmmdmdnr
    10·1 answer
  • Two ships leave port at the same time. One
    10·1 answer
  • Help i hill give brainliest
    15·1 answer
  • The length of the radius of a bicycle wheel is 14 inches. Which of the following is closest to the circumference of the wheel? A
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!