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
Aleonysh [2.5K]
3 years ago
11

Solve by substitution y=6x-11 -2x-3y=-7

Mathematics
2 answers:
Aleks [24]3 years ago
6 0
y=6x-11\\
-2x-3y=-7\\\\\
substitute \ y=6x-11\ into\ equation\\\\\
-2x-3(6x-11)=-7\ \ \ \ |omit\ the\ bracket\\\\
-2x+18x+33=-7\\\\
16x+33=-7 \ \ \ \ | subtract\ 33\\\\
16x=-40\ \ \ | divide\ by\ 16\\\\
x=-\frac{40}{16}=-\frac{5}{2}\\\\
y=6x-11=6*(-\frac{5}{2})-11=-15-11=-26\\\\Solution:\\ \left \{ {{y=-26} \atop {x=-\frac{5}{2}}} \right.
Neporo4naja [7]3 years ago
5 0
So you substitute y=6x-11 into -2x-3y=-7

-2x-3(6x-11)=-7
add like terms
-20x+33=-7
subtract 33 from both sides
-20x=-40
multiply by -1
20x=40
divide both sides by 20
x=2
You might be interested in
How does temperature affect phase changes?
Y_Kistochka [10]
Answer. Temperature affects phase change by slowing down the movement in between the atoms, thus causing a change in kinetic energy, which in turn causes the atoms to undergo forms of combining or a type of disepersion.
4 0
3 years ago
Which is the graph of the sequence defined by the function f(x + 1) = Three-fifthsf(x) when the first term in the sequence is 37
nadezda [96]

Answer: On a coordinate plane, 4 points are plotted. The points are (1, 375), (2, 225), (3, 135), (4, 81).

Step-by-step explanation:

We have the relation:

f(x + 1) = (3/5)*f(x)

such that the first term is 375

Then:

f(1) = 375.

Using the above relation, we have that:

f(1 + 1) = f(2) = (3/5)*f(1) = (3/5)*375 = 225

Then we have the pair (2, 225)

The next term is:

f(2 + 1) = f(3) = (3/5)*f(2) = (3/5)*225 = 135

Then we have the pair (3, 135)

the next term is:

f(3 + 1) = f(4) = (3/5)*f(3) = (3/5)*135 = 81

Then we have the pair (3, 81)

Then the correct option is the first one; On a coordinate plane, 4 points are plotted. The points are (1, 375), (2, 225), (3, 135), (4, 81).

9 0
3 years ago
Read 2 more answers
Need answer asap, correct answer gets brainliest.
garik1379 [7]

Answer:

A is (6,-4)

Step-by-step explanation:

5 0
2 years ago
Two boats leave the same harbor in Hawaii at the same time. Boat A is traveling due west at a speed of 45mph. Boat B is travelin
Andrew [12]
I quickly did this on paper and here is my answer I’m not 100% sure I’m correct but here it is

In 1 hour the boats will be 15 miles apart. In 3 hours the boats will be 45 miles apart.

Hope this helps :D
7 0
3 years ago
Read 2 more answers
Suppose a normal distribution has a mean of 266 and a standard deviation of
pentagon [3]

Answer:C. 0.84

Step-by-step explanation:

Just took the quiz

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is equivalebt to 6/12
    8·2 answers
  • Can anybody help me
    9·1 answer
  • 3 1/4 as an improper fraction
    15·2 answers
  • Question 13 PLEASE HELP Find the x-intercept of -x +2y =6. X-intercept: (___,0)
    12·2 answers
  • A line plot has a range of 4, from 1 to 5, with 5 modes. How would you describe the graph?
    9·1 answer
  • Find an ordered pair ( x,y ) that is a solution to the equation.<br><br><br> 6x-y=1
    14·1 answer
  • How many significant figures are there in the following measurement?2.04679 millimeters
    13·1 answer
  • Please help me sue tonight
    7·1 answer
  • Solve the system of equations 2x + 2y = 6 and 2y - x = 12 using any method.
    13·2 answers
  • Write an equation of the line that passes through (18,2) and is parallel to the line 3y-x=-12 .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!