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
ivann1987 [24]
3 years ago
8

Use SUBSTITUTION to solve the system y=4x 2y-2x=12

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0
1 Substitute
y
=
2
x
−
10
y=2x−10 into
y
=
4
x
−
8
y=4x−8.
2
x
−
10
=
4
x
−
8
2x−10=4x−8

2 Solve for
x
x in
2
x
−
10
=
4
x
−
8
2x−10=4x−8.
x
=
−
1
x=−1

3 Substitute
x
=
−
1
x=−1 into
y
=
2
x
−
10
y=2x−10.
y
=
−
12
y=−12

4 Therefore,
x
=
−
1
y
=
−
12

​

x=−1
y=−12
​
You might be interested in
The y-intercept in the linear equation −2y−4x−6=0 is _[blank]_. will give brainliest
Ronch [10]

Answer:

-3 is the value of the location where the line crosses the y-axis,and is commonly referred in the slope-intercept form of a line "the intercept". Now it may be your teacher expects you to answer this as the point on the plane where the y-intercept occurs, and that should be the point (0, -3). Make sure you follow your teacher's notation.

Step-by-step explanation:

Re-write the equation given in slope=intercept form by isolating the variable "y" on one side of the equation and expressing the rest in slope*x + y-intercet form:

-2y-4x-6=0\\-4x-6=2y\\y=-2x-3\\

which tells us that the slope of the line is -2 and it y-intercept is "-3".

Now, watch out because you may be asked to write the actual coordinates of the y-intercept, which are: (0, -3)

giving the x-coordinate 0 and the y-value where the line crosses the y-axis.

7 0
3 years ago
Read 2 more answers
Kristen and melissa spent 35% of their $32 on movie tickets. how much money did they spend
Ostrovityanka [42]

Answer:

11.2$

Step-by-step explanation:

Kristina and Melissa had 32$ at total

● 32$ => 100%

They have spent 35%

Let x be that amount

● x => 35%

●32 => 100

● x => 35

● x = (35×32)/100 = 11.2$

They have spent 11.2$

3 0
3 years ago
Read 2 more answers
What are the benefits to using technology over a handheld compass and straightedge?
Nady [450]
A benefit is the technology can be more aaurate and you can use a compass and a straightedge wrong and get lost. Also the compass can break
7 0
3 years ago
Jenna earns $8.75 per hour working at the mall. If Jenna worked hours 20 1/5 last week, how much did she earn before taxes were
Elena-2011 [213]
To find out the amount Jenna earns, you need to multiply how much she earns per hour by the amount of hours she works for.

If she earns $8.75 for 1 hour, and works for 20 1/5 hours, she'll earn:
8.75 x 20 1/5 = 176.75

Jenna earns $176.75 before tax.
7 0
3 years ago
Find the value of t in the diagram
12345 [234]

In a trapezoid, with bases b and B and height h, the area is given by


A = \frac{(B+b)h}{2}


In your case:


B = BC = 3t

b = AD = t

h = AB = t


so, the formula becomes


A = \frac{(3t+t)t}{2} = \frac{4t^2}{2} = 2t^2


Since the area is 50 \text{cm}^2, we have


2t^2 = 50 \iff t^2 = 25 \iff t = 5

5 0
3 years ago
Read 2 more answers
Other questions:
  • A right cone has a slant height of 6 and a radius of 4. What is the surface area?
    5·2 answers
  • The price of a television decreased from $1000.00 to $800.00. What was the percent of decrease? a. 2% b. 18% c. 20% d. 25%
    9·1 answer
  • Hannah purchases n magazines for $0.53 each.Write the expression for the total cost?
    11·1 answer
  • Simplify. 32 + 5 × 2 − 8 A) −84 B) 8 C) 11 D) 20
    11·2 answers
  • What is the answer please help
    12·1 answer
  • !!!!HELP NEEDED!!!!
    6·1 answer
  • Write fifteen cubed in exponential notation,expanded form,and standard form.
    7·1 answer
  • Write in slope intercept form. 2x + y = 2
    5·2 answers
  • James is contemplating an investment opportunity represented by the function A(t)=P(1.06)t, where P is the initial amount of the
    6·1 answer
  • 3 positive integers have a mean of 5 and range of 10, what are the integers
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!