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
marin [14]
3 years ago
9

5x+3y=28 3x+y=12 please solve algebraically

Mathematics
1 answer:
Aleks04 [339]3 years ago
8 0
The answer is x= 2, y = 6

Solve for y in the second equation, so you have y= -3x + 12. Now plug that in for y in the first equation: 5x + 3( -3x +12) = 28.
Now simplify: 5x + -9x + 36 = 28: -4x = -8; so x = 2.
Now plug x=2 into either equation to solve for y:
3(2) + y = 12; 6 + y = 12; so y = 6
You might be interested in
In the following: i. Find the zeros of each function
lilavasa [31]
The answer is a
Simply f (x) = 4yayayayayyauu
5 0
2 years ago
Write the sentence as an inequality.<br><br> The sum of twice a number n and 8 is less than 25
wel

Answer:

less than twenty five

v

25 - <u>(2n + 8)</u> < the sum of 2 times N plus 8.

Step-by-step explanation:

6 0
3 years ago
The 12 boys in the class make up 15% of the class. What is the total number of students in the class?
alina1380 [7]

Answer:

80 students

Step-by-step explanation:

12/80 is 0.15 or 15%

5 0
2 years ago
Write the equation of a line perpendicular to 5x - 7y =-6 that passes through the point (-5,6)
Likurg_2 [28]

9514 1404 393

Answer:

  7x +5y = -5

Step-by-step explanation:

You can find the perpendicular line by swapping the x- and y-coefficients, and negating one of them. The new constant can be found by using the given point.

  7x +5y = 7(-5) +5(6) = -5

The perpendicular line through (-5, 6) is ...

  7x +5y = -5

3 0
3 years ago
A 6-sided die is rolled. what is the probability of rolling a number less than 4?
ohaa [14]

1/2

Step-by-step explanation:

All outcomes of a single die= 6

Events less than 4 =3

probability=3/6

=1/2

7 0
1 year ago
Other questions:
  • A cafeteria sells 30 drinks every 15 minutes.predict how many drinks the cafeteria sells every hour
    15·2 answers
  • Which pair of angles must be congruent?
    7·1 answer
  • Which of the following is a true proportion of the figure based on the triangle proportionality theorem? Question 13 options: A)
    13·2 answers
  • What is the slope of the line?<br> I NEED HELPP?!
    5·1 answer
  • Amanda reads 300 pages in 10 hours. If each page has 200 words on it, how many words did Amanda read per minute?
    13·2 answers
  • In a Mobil video game, for every one life you have , you earn 12 coins. If Johnny currently has 21 lives how many lives does he
    11·1 answer
  • Given vectors u=7i + 3j and v=-4i + 3j, find 5u-4v in terms of unit vectors i and j
    5·2 answers
  • Find the lenght of c using the Pythagorean theorem
    12·1 answer
  • Mr. Joaquin had $71.25 in his bank account, but then he bought some new ties and pants. After the purchase, he was in debt $25.2
    12·1 answer
  • Hey Yall, I have a pretty easy question for you guys ^◇^ and you'll also get some points if you get it right ; )
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!