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
Shtirlitz [24]
3 years ago
13

Solve the system of equation by adding or subtracting. x+4y=4 3x-4y=-4

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0
X=<span><span><span>43</span>y</span>+<span><span>−4</span><span>3 hope this helped</span></span></span>
pychu [463]3 years ago
4 0
When solving for X
~Add -4 to both sides
X+4Y=4
-4. -4
---------------
X=-4y+4

~add 4 to both sides
3x-4y+4=-4+4
3x=4y-4
~divide both sides by three
3x=4y-4
--- ------
3. 3
X=3\4+ -4\3

When solving for Y
~add -x to both sides
x+4y+-x=4+-x
4y=-x+4
~divide both sides by 4
4yy=-x+4
----- ------
4. 4
Y=-1\4x+1

3x-4y=-4
~add -3x to both sides
3x-4yy+-3x=-4+-3x
-4y=-3x-4
----- -------
4. 4
Y=3\4x+1
You might be interested in
Compare the decimal using less or greaser or equal 0.29 _0.3
worty [1.4K]

< .3 is greater then .29


6 0
3 years ago
Read 2 more answers
Almost done guys I have 5 more questions
erastova [34]

Answer:the third one

Step-by-step explanation:

just time how much months,weeks, and years, for each amount

8 0
3 years ago
Can someone help me?
Oxana [17]

Answer:

Step-by-step explanation:

To start calculating, we first need to make some proof.

Firstly, since AB = AC, we know that ΔABC is isosceles, which means that ∠ABC = ∠ACB.

Now, looking only to ΔBDE and ΔCDF, we can see that they are similar, because the two of its angles are congruent:

∠BED=∠CFD

∠DBE=∠DCF

To make it easier to visualize which are the corresponding vertexes, we can draw them like this:

And we need to remember that BC is 24, so:

BD+CD=24

Since the triangles are similar, their corresponding sides have constant ratio, which we can calculate from the corresponding sides DE and CF:

r=\frac{CF}{DE} =\frac{7.5}{4.5} =\frac{5}{3}

This ratio is the same for the other corresponding sides, so we can apply that for BD and CD:

r=\frac{CD}{BD} =\frac{5}{3}\\&#10; \frac{BD}{CD}=\frac{3}{5}  \\\\&#10;BD=\frac{3}{5} Cd

Thus, the measure of CF is approximately 13, alternative D.

3 0
3 years ago
Exit How many significant digits are in the number 0.00120?<br> a. 2<br> b. 3<br> c. 5<br> d. 6
grigory [225]
The answer
 is ..................................b.3

8 0
3 years ago
Read 2 more answers
Susie has 8/9 cup of ice cream . How many 1/4 cup servings can she make ?
Alex_Xolod [135]
8 cup servings. 1/4×8=8/4
5 0
3 years ago
Read 2 more answers
Other questions:
  • The spread of a virus can be modeled by exponential growth, but its growth is limited by the number of individuals that can be i
    7·1 answer
  • If the volume of a storage container is 6720 cubic inches, what is the height of the container
    7·1 answer
  • Given F1 = ∑ m(0,2,5,7,9) and F1 = ∑ m(2, 3,4,7,8) find the minterm expression for F1+F2. State a general rule for finding the e
    10·1 answer
  • Select from the drop-down menus to correctly complete each statement. −20&gt;−21 −19&gt;−20 −21 is located to the of −20 on a nu
    13·2 answers
  • Plz plz guys solve this i will give you brainliest ​ with procedure
    11·1 answer
  • Evaluate the expression 6.2 - (-9.1).​
    6·1 answer
  • The cube with side 2 is cut from the corner of rectangular prism with dimensions 4×3×5. Find the volume and total surface area o
    11·1 answer
  • Can someone please help
    14·1 answer
  • What is the range if this function ?
    14·1 answer
  • In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If a=8.9 meters and b=2.9 meters
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!