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
Aleks [24]
4 years ago
8

A system of equations is given below:

Mathematics
1 answer:
algol [13]4 years ago
4 0

The given system of equations is:

y = 4x − 3 ...(1)

2x + 7y = 41 ...(2)

Notice that the first equation is a solved equation for y. So, we can simply substitute 4x-3 for y in equation (2) to solve. This method is also knwon as substitution method by which we can plug in one equation into other equation.

So, if we will substitute y=4x-3 in equation (2) then we will get,

2x+7(4x-3)=41

Hence, third choice 2x + 7(4x − 3) = 41 is the correct answer.

You might be interested in
What is the greatest common factor of 60,90, and 120
garri49 [273]
The answer would be 30.

60/2 = 30
90/2 = 45
120/2 = 60
3 0
4 years ago
Read 2 more answers
The ratio of white flour to whole wheat flour in a bread recipe is 2:3. The recipe uses 60 cups of flour. How much white flour i
luda_lava [24]
So white flour to whole wheat is 2:3, and wheat flour is 60 cups.

Lets put it this way, 2 white flour = 3 wheat flour
If we have 60 cups of wheat flour, we are multiplying the above equation by 20 to get 3 x 20 - 60 cups of wheat flour.

2 white flour = 3 wheat flour (times 20 is 60, which is what they're asking)

Now we need to multiply 20 on both sides, because what you do on one side must be done to the other.

2 white flour = 3 wheat flour
x 20                    x 20

40 white flour = 60 wheat flour

The final answer should be 40 cups of white flour is needed when the recipe uses 60 cups of wheat flour.
 
Hope this helps! :)
8 0
3 years ago
Read 2 more answers
You need at least 120 cupcakes for a picnic. So far, people have donated 96 cupcakes. Solving the inequality c + 96 ≥ 120 will t
kap26 [50]
C+96>_120
c>_120-96
c >24
u simply move the 96 to the right to subtract and it then became easy to solve
3 0
3 years ago
Read 2 more answers
What are the domain and range of the function f(x) = x^4-2x^2-4 ?
tatuchka [14]

Answer:

Think about what domain and range is. Domain is the x and range is the y.

Step-by-step explanation: What values of x can you put in this function? Is there any number you cannot use?? Then what y's will you get back? The best way to find out might be to graph it to look. Since it is an even function whose ends go up, all the y's will be greater than or equal to the y value of the vertex.

7 0
4 years ago
Read 2 more answers
Taking finals pls help
Shtirlitz [24]

Answer:

It should be B $250 - - - - -

3 0
3 years ago
Other questions:
  • Let x represented the time of the dive . Let y represented the depth of the submarine. Right and equation for the proportional r
    14·1 answer
  • Ginny has a 15.3 page long book report to finish by Friday.On Monday she does 4.48 pages.On Tues she does 5.23 pages.On Wednesda
    12·2 answers
  • ________ means that there is a relationship between two or more variables.
    8·1 answer
  • 21 - -7what is 21 - 7
    12·2 answers
  • Imagine there are two chambers. Chamber P is filled with air while Chamber Q has no air in it (a vacuum). If a leaf and a brick
    11·2 answers
  • 8 &gt; -⅕w + 2<br> plz show ur work
    10·1 answer
  • Help me please ! I’ll mark you brainly
    5·2 answers
  • Need help badlyyyyyy
    12·1 answer
  • 2) through: (-4, 5) and (-5,0<br> what is the slope intercept form of the line
    11·1 answer
  • Write the equation of the circle whose center is at the origin and whose diameter is 12.5
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!