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
Sergeeva-Olga [200]
3 years ago
13

I need help please you haft to use elimination to solve thanks

Mathematics
1 answer:
nekit [7.7K]3 years ago
3 0
-7x+14y=-14
-3x+7y=-3
when using elimination you need to multiply or divide one equation to be able to “eliminate” a variable.
-7x+14y=-14
-2(-3x+7y=-13)
multiply the second equation by -2
-7x+14y=-14
6x-14y=6
simplify
-1x=-8
divide by -1 on both sides to isolate the x
x=8
now you can plug in 8 for x in one of the equations.
-3(8)+7y=-3
simplify
-24+7y=-3
add -24 to both sides the isolate the constant and variable
7y=21
now divide by 7 on both sides to isolate y
y=3
this system of equation had one solution at (8, 3)

i hope this helps :)
You might be interested in
write a number that is greater than 1 in scientific notation . Explain how you know it is greater than 1 .
Gemiola [76]

Answer: 9.3 because it’s a decimal .

Step-by-step explanation:

6 0
3 years ago
Help please. will give Brainly.​
jek_recluse [69]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The filling in of the formula for the n-th term is pretty straightforward. The attachment shows how simple it is.

The 7th term is found by evaluating the expression for n=7.

  a₇ = 192

8 0
3 years ago
Your friend is 1.2 times taller than you. Your friend is 64.5 inches tall. How tall are you?
Andru [333]
You are X, if your friend is 1.2 times taller than you= 1.2X
That's why 64.5=1.2X
                   X=53.75
But you should write 53.8 inches tall. Because there is one number after point.
<span>As a result, you are 53.8 inches tall


</span>
6 0
3 years ago
Calculate the slope of the line between (3,7) and (2,7).
goldenfox [79]

Answer:

It’s y2-y1 over x2-x1

Y2 is 5 and y1 is 5

5-5

X2 is 7 and x1 is -2

7- negative 2

5-5 is 0

7- negative 2 is 9

Slope is 0

Step-by-step explanation:

Hope this helps:)

7 0
2 years ago
Read 2 more answers
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=6°, and GE = 71 feet. Find the length of EF to the nearest tenth of a foot.
djyliett [7]

Answer:68.2

Step-by-step explanation:

cos6=71/EF

cos6= 0.960170286650366

0.960170286650366= 71/EF

0.960170286650366*71=EF

EF= 68.2

3 0
3 years ago
Read 2 more answers
Other questions:
  • The area of a wetland drops by 1/4 every 8 years. What percent of its total area disappears after 40 years?
    11·1 answer
  • B) Write 25 x 10^6 in standard form.
    14·1 answer
  • Consider the 1-to10^19 scale on which the disk of the Milky Way Galaxy fits on a football field. On this scale, how far is it fr
    7·2 answers
  • use the tally chart to draw a bar graph below. The scale is given. Coins in Maria's Piggy Bank Number of Coins Penny Nickel Dime
    7·1 answer
  • I don’t understand this assignment!!
    7·1 answer
  • 7. Is the simplified form of 2 square root of 3 ⋅ 2 square root of 6 rational? (1 point)
    7·1 answer
  • 11. The total area of a quilt is defined as the equation: A = x² + 13x + 36. Find the possible side
    13·1 answer
  • If a cube has a volume of 343 cubic yards, what is its surface area?
    7·1 answer
  • Find the value of x in the figure below.<br> (8x + 5)°<br> (13x – 14)°
    15·1 answer
  • Solve p = -44 ÷ 11.<br> GIVING BRAINLIST!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!