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
lozanna [386]
2 years ago
10

I need help with this math please​

Mathematics
2 answers:
Lapatulllka [165]2 years ago
8 0

We have the following system of equations,

\begin{cases}-5x+6y=8 \\-5x+4y=2\end{cases}

First multiply the first equation on both sides by -1 to get,

\begin{cases}5x-6y=-8 \\-5x+4y=2\end{cases}

Then add the equations to get,

5x-5x-6y+4y=-8+2\implies-2y=-6 \\ \implies\boxed{y=3}

Now just plug in the value of y into one of the original equations and solve for x (I'll pick the second one).

-5x+4\cdot3=2\implies-5x=-10 \\ \implies\boxed{x=2}.

So the final solution is a point where these two lines intersect and that is at \boxed{(2,3)}.

Hope this helps.

Alexus [3.1K]2 years ago
5 0

In order to solve using elimination, we need to be able to get rid of one variable, so that we can solve for the other. We need to subtract these two equations given from one another, or multiply the bottom equation by a negative and add them together.

(-5x + 6y = 8) - (-5x + 4y = 2)

(-5x + 6y = 8) + (5x - 4y = -2)

0x + 2y = 6

2y = 6

y = 3

Now that we know the value of one variable, we can take that value and plug it back into one of the original equations and solve for the value of the other variable.

-5x + 6y = 8

-5x + 6(3) = 8

-5x + 18 = 8

-5x = -10

x = 2

The solution to this system of equations is (2, 3).

Hope this helps!! :)

You might be interested in
The graph of an equation with a negative discriminant always has which characteristic?
kobusy [5.1K]
No x intercept because there is no solution
4 0
2 years ago
QUICK <br> What is the image of (9,2) after a reflection over the line Y= - x ?
Zolol [24]
There’s no picture attached..... if you attach one I can help!
3 0
3 years ago
Read 2 more answers
Help ASAP Geometry 20 points
Alja [10]

Answer:

(3, 3 )

Step-by-step explanation:

Under a translation < 8, 0 > then

A(- 5, - 3 ) → (- 5 + 8, - 3 + 0 ) → (3, - 3 )

The line with equation y = 0 is the x- axis

Under a reflection in the x- axis

a point (x, y ) → (x, - y ), thus

(3, - 3 ) → (3, 3 )

8 0
3 years ago
If p =1/3 and Q=1/4.Evaluate 2p-3Q/12pQ​
mixer [17]

Answer:

I got -0.09...

although I could be wrong, don't take my word for it, it's been a while lol

7 0
2 years ago
Meg and Tanner take a road trip together where they take turns driving. The ratio of the number of miles that Meg drives to the
frez [133]

Answer:

Step-by-step explanation:

\frac{Meg}{Tanner} = \frac{4}{3}

total dist. driven = dist. Meg drove + dist. Tanner drove

Meg = 112

Tanner = x    or how far did Tanner drive?

\frac{112}{x} = \frac{4}{3}

\frac{3}{4} * 112 = x

84 =x   so Tanner drove 84 miles  

total driven = 112 + 84

total driven = 196    :)

4 0
2 years ago
Other questions:
  • Evaluate the surface of the integral rr
    15·1 answer
  • In 2 + In 8 - In 4<br><br> A in 4 <br> B in 6 <br> C in64
    12·2 answers
  • Which of the following expressions results in 0 when evaluated at x = 4?
    15·1 answer
  • HELP ASAP
    7·1 answer
  • Help please solve for x<br> i will give brainliest
    6·1 answer
  • Two factory workers win the in-house raffle with a prize of £240. Monika and Robert share the prize money in a ratio of 3:5. How
    8·1 answer
  • A conductor is mapping a trip and records the distance the train travels over certain time intervals.
    7·1 answer
  • What is cos(3pi)?<br> 1<br> 0<br> -1<br> -2
    6·2 answers
  • Can you please help me
    8·2 answers
  • The measure of one side of a square is (s + 7) inches long. Which pair of expressions both represents the perimeter of this squa
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!