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
Alex Ar [27]
4 years ago
6

Solve the simultaneous equations:

= 12 " alt="4y + 3x = 12 " align="absmiddle" class="latex-formula"> and y = 2x - 4
Mathematics
1 answer:
sashaice [31]4 years ago
7 0
Put equation two into the first equation by replacing values of y with 2x-4

4(2x-4)+3x=12
8x-16+3x=12
11x=28
x=28/11

Put the value of x into the original equation to find the value of y.

y=2(28/11)-4
y=56/11-4
y=12/11

x=28/11 and y=12/11
You might be interested in
The 7th grade has 220 tudents. There are 3/5 girls. How many boys are there in 7th grade
Helga [31]

Answer:

88

Step-by-step explanation:

Let's see - if there are 3/5 girls, there must be 2/5 boys. Assuming everyone in the class is binary, of course.

So 2/5 of 220 is the number of boys. When you see "of," always think multiplication!

2/5 of 220

2/5 * 220 = 88 boys in 7th grade

3 0
4 years ago
Which of the following best describes when a relation is a function?
emmainna [20.7K]

Answer:

Step-by-step explanation:

The answer is C.

That's another way of using the vertical line test. Put a ruler perpendicular to the x axis and going through a point. If the ruler hits only one point, then then if all the points plotted do the same thing, then the points make a function.

C says the same thing. Only 1 element in the domain (x) can be associated with 1 y value (the range). If there is more than 1 y value, then you do not have a function.

4 0
3 years ago
Find the x <br> 1/2x+3/4=x5/6
Agata [3.3K]

Answer:

x=\frac{9}{4}

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help. <br> I have 1 question with 2 answers. <br> Thank you.
Bogdan [553]
For this question, we want to find two possible scaling factors. Let's use 1 side each from the triangles to get our answer.

I'm gonna use 9 and 6. Now, create two fractions.

\frac{9}{6} and \frac{6}{9}

Now, simplify these two fractions. You get the following.

\frac{3}{2} and \frac{2}{3}

Those are your two answers. Hope this helps!
7 0
3 years ago
Need help ASAP!!!!!!!!!!
tankabanditka [31]

Answer:

y=-3x+10

here you go lmk if u need an explanation

6 0
3 years ago
Other questions:
  • What is 28- 12.5% decrease???
    9·1 answer
  • Anu bought an air cooler as shown below. Its water tank is in the shape of a cuboid and can take 40 litres of water. Its dimensi
    15·1 answer
  • Write an expression for the lengths of the rectangle in terms
    10·1 answer
  • Trey can drive his car 130 miles on 4 gallons of gas. Pick True or False for each statement
    8·2 answers
  • Simplify
    9·1 answer
  • can someone please answer these ... report cards come out tomorrow and this needs to be turned in it would mean so much to me if
    13·1 answer
  • A PERT project has 45 activities, 19 of which are on the critical path. The estimated time for the critical path is 120 days. Th
    7·2 answers
  • Need ASAP if you have other answers that ur not sure are the answer put them any way
    10·1 answer
  • Please help asap no trolls!
    15·1 answer
  • How to solve 3x+7=2x+1 using Dcmam​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!