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
iren [92.7K]
3 years ago
11

AhhhhhHH please help me

Mathematics
1 answer:
lakkis [162]3 years ago
3 0
Use the y value in equation one and substitute it in equation two.

y=4x-3
y=-x-13

4x-3=-x-13
solve for x
add x to both sides
5x-3=-13
add 3 to both sides
5x=-10
divide both sides by 5
x=-2

Use x=-2 to solve for y in either equation
y=4x-3
y=4(-2)-3
y=-8-3
y=-11

(x, y) = (-2, -11)
Top right is the answer

Hope this helps! :)
You might be interested in
Ginnys team scored 22 points during the first half of a basketball game.Her team scored 39 points during the second half of the
charle [14.2K]

Her team scored a total of 22+39 = 61 points. This is 8 points higher than the other team, so the other team scored 61-8 = 53 points.

As for which expression your teacher wants as the final answer, it will depend on how simplified you want it to be. You could have the following possible answers:

  • 22+39-8
  • 61-8

Other expressions may be possible as well.

7 0
3 years ago
Read 2 more answers
Emily is solving the equation 2(x+9)=4(x+7)+2 where did she make an error
Wittaler [7]
Hello!

2(x + 9) = 4(x + 7) + 2

Distribute the 2

2x + 18 = 4(x + 7) + 2

Distribute the 4

2x + 18 = 4x + 28 + 2

Combine like terms

2x + 18 = 4x + 30

Subtract 18 from both sides

2x = 4x + 12

Subtract 4x from both sides

-2x = 12

Divide both sides by -2

x = -6

Where she did something different than me is her mistake

Hope this helps!
6 0
3 years ago
What is the area of the shaded region of the figure
Alborosie
So we're looking at two rectangles, one cut out of the other, so all you do is find the area of the big one, base times height equals area, minus the area of the small one, base times height equals area. So the equation you have to solve for is this,

Area=(12.6X14)-(3X8.4)
6 0
3 years ago
Read 2 more answers
The Chickens and Pigs Problem A farmer saw some chickens and pigs in a field. He counted 15 heads and 44 legs. Problem solve to
Flauer [41]

Answer:

15 pigs 22 chickens

Step-by-step explanation:

So if there are 15 heads, that means there 15 pigs and we know chickens have 2 legs, so we do do 44/2 = 22, so there are 15 pigs and 22 chickens

6 0
4 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
olchik [2.2K]

Answer:

14.52 seconds.

Step-by-step explanation:

We have been given that the height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation y=-16x^2+224x+121. We are asked to find the time, when the rocket will hit the ground.

We know that the rocket will hit the ground, when height will be 0. So to find the time when rocket will hit the ground, we will substitute y=0 in our given equation as:

0=-16x^2+224x+121

Let us solve for x using quadratic formula.

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-224\pm\sqrt{224^2-4(-16)(121)}}{2(-16)}

x=\frac{-224\pm\sqrt{50176+7744}}{-32}

x=\frac{-224\pm\sqrt{57920}}{-32}

x=\frac{-224\pm240.66574}{-32}

x=\frac{-224+240.66574}{-32}, x=\frac{-224-240.66574}{-32}

x=\frac{16.66574}{-32}, x=\frac{-464.66574}{-32}

x=-0.520804375, x=14.520804375

Upon rounding to nearest 100th of second, we will get:

x\approx -0.52, x\approx 14.52

Since time cannot be negative, therefore, the rocket will hit the ground after 14.52 seconds.

6 0
4 years ago
Read 2 more answers
Other questions:
  • suppose p varies directly with d, and p=7 when d=3 what is the value of d when p=28. 140/3 4/3 12 16
    15·2 answers
  • How do I calculate 2/3 of 3/7
    9·2 answers
  • Let the random variable X be the number of rooms in a randomly chosen owner-occupied housing unit in a certain city. The distrib
    13·1 answer
  • I need help ASAP I’ll give brainliest to that person :)
    15·1 answer
  • owen has two pieces of yarn, one 15 ft long and the other 10 ft long. For a craft project, he wants to cut them up to produce ma
    5·1 answer
  • Over what interval is the graph of f(x) = –(x + 8)2 – 1 decreasing?
    10·2 answers
  • What is the eighth term in the following sequence?
    10·2 answers
  • In trapezoid TRAP, the parallel bases are TP and RA
    7·1 answer
  • Which of the following equations describes a parabola with vertex (3,2)?
    11·2 answers
  • The Mad Hatter is ordering cups from Teacups
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!