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
lina2011 [118]
3 years ago
14

Solve the following system of equations. 3x+4y=12

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0

Answer:

(0,3) is the solution set for given system.

Step-by-step explanation:

Given that:

3x+4y=12  ------- eq1

2x-3y= -9 ------- eq2

Multiplying eq1 with 2 and eq2 with 3 we get:

6x + 8y = 24 --------- eq1

6x - 9y = -27 -------- eq2

Subtracting eq2 from 1 we get:

17y = 51

Dividing both sides by 17 we get:

y = 3

Putting value of 3 in eq1 we get:

3x + 4(3) = 12

3x + 12 = 12

3x = 0

Dividing both sides by 3

x = 0

So the solution set will be: (0,3)

i hope it will help you.

You might be interested in
The measure of an angle is 173°. What is the measure of its supplementary angle?
barxatty [35]

Answer:

7

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
At a coffee shop, the first 100 customers'
LiRa [457]

Answer:

Step-by-step explanation:

What is the probability that a customer ordered

a hot drink given that he or she ordered a large?

So we are looking for the percentage of a hot drink and a Large.

Our list:

Small

Medium Large

Hot

5

48

22

8

12

5

Cold

He can tell there is 10% atleast for hot and 0% for a large

7 0
3 years ago
Suppose you choose a marble from a bag containing 3 red marbles, 5 white marbles, and 4 blue marbles. You return the first marbl
Veseljchak [2.6K]

Answer:

P(red and blue) = 0.1667

Step-by-step explanation:

Let A represent choosing a red marble, there are 3 red marbles

Let B represent choosing a blue marble, there are 4 blue marbles

There are 12 total marbles

Then...

P(A) = 3/12

P(B) = 4/12

choosing the first one, then replacing means the first choice has no effect on the probabilities of the second choice, so the situation is independent.  

When calculating the probability of independent events, you multiply the probabilities together.  There are 2 scenarios where we can get a red and blue marble..

Choosing a red, then a blue marble, the probability is

(3/12)( 4/12) = 12/144 = 1/12

Choosing a blue, then a red marble, the probability is

(4/12)(3/12) = 12/144 = 1/12

So we have a

(1/12) + (1/12) = 2/12 = 1/6 chance for that to happen, to

P(A and B) = 1/6 = 0.1667

6 0
3 years ago
The formula for the perimeter of a rectangle is P = 2 (1+w) solve for w.
max2010maxim [7]

2(1+w)=P\ \ \ \ |\text{use distributive property}\\\\2+2w=P\ \ \ \ |-2\\\\2w=P-2\ \ \ \ |:2\\\\\boxed{w=\dfrac{P-2}{2}}

5 0
3 years ago
72 inches but converted to yards
Maksim231197 [3]

Answer:

2 yards

Step-by-step explanation:

12 inches=1  ft

72 inches=1/12×72=6 ft

3 ft=1 yard

6 ft=1/3×6=2 yards

4 0
3 years ago
Read 2 more answers
Other questions:
  • alicia got 60 questions correct on her science test. if she received a score of 75% how many questions were on the test?
    6·1 answer
  • 20 points / WILL GIVE BRAINLIEST
    10·1 answer
  • Which is the graph of f(x)= √x
    15·1 answer
  • 2×(5+2)÷2 what is the answer
    10·2 answers
  • The meal was $5.75 and you added a 15% tip<br> what was the tips total now.
    13·2 answers
  • Helpppp<br> No links plz
    14·1 answer
  • 7.
    9·1 answer
  • Making late payments on credit card bills has what kind of effect on a person's credit score?
    11·2 answers
  • Select the correct answer. Which function is represented in this graph? A. f(x)=|x-1|-5
    6·1 answer
  • Write a formula for g(x) in terms of x.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!