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
Gekata [30.6K]
3 years ago
8

Solve by Elimination

Mathematics
2 answers:
dezoksy [38]3 years ago
5 0
Answer: (3,4)

multiply both sides of the top equation by 2

get rid of the x variable by subtracting add all corresponding numbers and variables (4+(-4), -4+7, -4+16) which leaves you with 3y=12

divide both sides by 3 which cancels out the 3y and leaves you with y=4

input y in your top equation to find x. (-2x+2x4=2)

this leaves you with x=3

I HOPE THAT MADE SENSE!!!
Leona [35]3 years ago
3 0
1) (3,4), 2) (1,9), 3) (4,4)
You might be interested in
Which equation would demonstrate the commutative property?
kompoz [17]

Answer:

b. 37 • 26 = 26 • 37

:)))))))))))))))))))

7 0
2 years ago
H^-16/h^x=1/h^24 can someone help me please
Basile [38]

Given:

Consider the equation is

\dfrac{h^{16}}{h^x}=\dfrac{1}{h^{24}}

To find:

The value of x.

Solution:

We have,

\dfrac{h^{-16}}{h^x}=\dfrac{1}{h^{24}}

Using properties of exponents, we get

h^{-16-x}=h^{-24}       [\because \dfrac{a^m}{a^n}=a^{m-n},a^{-n}=\dfrac{1}{a^n}]

On comparing both sides, we get

-16-x=-24

Add 16 on both sides.

-x=-24+16

-x=-8

Multiply both sides by -1.

x=8

Therefore, the value of x is 8.

5 0
2 years ago
Suppose an=3an-1 -5an-2 -4an-3. and a4= -7, a5=-36, a6=-85 , find a1 , a2, a3​
maria [59]

Answer:

        a_1=4\\\\a_2=0\\\\a_3=3

Explanation:

The equation is:

      a_n=3a_{n-1}-5a_{n-2}-4a_{n-3}

and

      a_4=-7, a_5=-36, a_6=-85

<u>1. Subsittute n = 6 into the equation:</u>

      a_6=3a_{5}-5a_{4}-4a_{3}

      Now subsititute the known values:

       -85=3(-36)-5(-7)-4a_{3}

      You can solve for a_3

      -85=-108+35-4a_{3}\\\\4a_3=12\\\\a_3=12/4\\\\a_3=3

<u />

<u>2. Substitute n = 5 into the equation:</u>

    a_5=3a_{4}-5a_{3}-4a_{2}

     Substitute the known values and solve for a_2

        -36=3(-7)-5(3)-4a_{2}\\\\4a_2=-21-15+36=0\\\\a_2=0

<u>3. Substitute n = 4 into the equation, subsitute the known values and solve for </u>a_1<u />

       a_4=3a_{3}-5a_{2}-4a_{1}

        -7=3(3)-5(0)-4a_{1}\\\\4a_1=9+7=16\\\\a_1=4

7 0
3 years ago
At this rate, how much would 6 bagels cost?
dolphi86 [110]

Answer:

2 ½ dollars

Step-by-step explanation:

You take half of 5 and that makes 2 ½

6 0
2 years ago
Which is a multiple of 15?<br>a.1<br>b.5<br>c.h<br>d.15
lakkis [162]
15 is you answer sir. the multiples are 15,30,45,60,75<span>,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • You invest $2000 in an account at 4.5% per year simple interest. How much will you have in the account at the beginning of the 8
    14·2 answers
  • Consider the function f(x)=3x-1 (over)x+4 (a) At which value of x will the function not have a solution? Explain your answer. (b
    5·1 answer
  • 6) If the perimeter of the equilateral triangle ABC is x inches. The mid points of the sides are joined to form the smaller tria
    12·1 answer
  • Mark is building a custom wooden frame around his flower bed. The length of the frame is 5.45 feet, and the width of the frame i
    12·1 answer
  • Increase 12 1/2 cm by 25 mm
    7·1 answer
  • Use the figure to write and solve an equation for x.
    7·1 answer
  • You are a host at a restaurant. You make $7.75 per hour. You work 17 hours each week and are paid biweekly. How much is your pay
    6·2 answers
  • Using slope formula find the slope of the line through the points 0,0 and 3,12 use the pencil and paper
    14·2 answers
  • Hel]pppppppppppppp timed plz hurry
    14·1 answer
  • What is the equation in slope-intercept form for graph shown?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!