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
svetoff [14.1K]
3 years ago
10

Solve the system of equations using the substitution method.y=2,2x+y=8

Mathematics
2 answers:
den301095 [7]3 years ago
7 0

Answer:

x=3, y=2

Step-by-step explanation:

y=2

substitute 2 for y

2x+2=8

x=3

OlgaM077 [116]3 years ago
3 0

Answer:

x=3

Step-by-step explanation:

2x+2=8

2x=6

x=3

You might be interested in
PLEASE HELP!!! :))
Nina [5.8K]

For a better understanding of the solution given here please find the attached file which has the relevant diagram.

To answer this question we will have to make use of <u>the Isosceles Triangle Theorem</u> which states that the perpendicular bisector of the base of an isosceles triangle is also the angle bisector of the vertex angle. Thus, as a corollary we know that is EF is the angle bisector of the vertex angle ∠E, then, EF is the perpendicular bisector of the of the base DK.

Please follow the diagram of a complete understanding of the logic and the solution.

As EF is the angle bisector as given in the question, thus we will have:

m\angle DEK=2\times m\angle DE F=2\times 43^{\circ}=86^{\circ}.

Also, from the Theorem we know that KF will be half of DK and thus, KF will be:KF=\frac{1}{2}DK= \frac{1}{2}\times 16=8 centimeters.

Likewise, from the same theorem we have: m\angle EFD=90^{\circ}

4 0
3 years ago
two lines intersect.One has gradient 4 and y-axis intercept 3. The other has gradient 6 and cuts the y-axis at (0,1). What is th
timurjin [86]

Answer:

(1, 7 )

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Then the equations of the 2 lines are

y = 4x + 3 → (1)

y = 6x + 1 → (2)

Substitute y = 6x + 1 into (1)

6x + 1 = 4x + 3 ( subtract 4x from both sides )

2x + 1 = 3 ( subtract 1 from both sides )

2x = 2 ( divide both sides by 2 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting into (1)

y = 4(1) + 3 = 4 + 3 = 7

Point of intersection = (1, 7 )

5 0
3 years ago
How do you solve this problem
Vikentia [17]
Get the app called Photomath. It should help with this:)
7 0
4 years ago
Shu Yi can't resist a sale. She recently bought a dress for $93 after it had been discounted 25%. She also purchased shoes that
faust18 [17]
First divide 93 by 3 to get 25% of the original price: 31. Then multiply it by 4 to get the whole original price, which is $124. Now onto the shoes. 
Divide 119 by 17 to get 7, which is 5% of the original price for the shoes. Then multiply 7 by 20, which is $140 for shoes. 
Subtract 124-93 to get 31, the savings on the dress and also subtract 
140-119 to get 21, savings on the shoes. Then add them together to get a grand savings total of $52 in savings. Hope this helps!
7 0
3 years ago
What is the missing part​
mihalych1998 [28]

Answer: the missing part is 45

suppose:  the missing part is x

we use Thales theorem:

\frac{x}{18}=\frac{20}{8}\\\\=> x = \frac{20.18}{8}=45

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Wayne has a recipe on a 3 inch by 5 inch index card that he want to enlarge to 15 inches long how wide will the enlargement be
    12·2 answers
  • you have a large container of olive oil. You have used 22 1/2 quarts of oil. Twenty- five percent of the oil remain. How many qu
    6·1 answer
  • Find P(x): P(x^2+x+3)P(3x+1)=P(6x^3+7x^2+16x+3)​
    15·1 answer
  • A marathon is 138,336 ft long. how long is this distance in miles?
    5·2 answers
  • (6x 2 - x - 40) ÷ (5 + 2x)
    9·1 answer
  • -8x-27=-7\left(1+2x\right)+2x
    8·1 answer
  • I need help ASAP, if you can. My problem is 3y-1(divided by)2=Z. I need to find Y.
    7·2 answers
  • A submarine sits at -300 meters in relation to sea level. Then it descends 115 meters. What is it’s new position in relation to
    11·1 answer
  • Use the two-way frequency table to complete the relative frequency table. Drag the numbers into the boxes.
    7·1 answer
  • Which structure is found in some but not all plant cells?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!