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
Mariulka [41]
4 years ago
5

Solve system by substitution x-5y=18 2×+6y=4

Mathematics
1 answer:
vfiekz [6]4 years ago
7 0
Algebra Calculator
I will solve your equations by substitution.<span><span><span>12y</span>=4</span>;<span><span>x−<span>5y</span></span>=18</span></span>
Step: Solve<span><span> 12y</span>=4</span>for y:<span><span><span>12y/</span>12</span>=<span>4/12</span></span>(Divide both sides by 12)<span>y=<span>13</span></span>Step: Substitute <span>1/3 </span>for y in<span><span><span> x−<span>5y</span></span>=18</span>:</span><span><span>
</span></span><span><span>x−<span>5y</span></span>=18</span><span><span>
</span></span><span><span>x−<span>5<span>(<span>1/3</span>)</span></span></span>=18</span><span><span>
</span></span><span><span>x+<span><span>−5/</span>3</span></span>=18</span>(Simplify both sides of the equation)<span><span><span>
</span></span></span><span><span><span>x+<span><span>−5</span>/3</span></span>+<span>5/3</span></span>=<span>18+<span>5/3</span></span></span>(Add 5/3 to both sides)<span>
</span><span>x=<span>59/3</span></span>
Answer:<span><span>x=<span><span><span>59/3</span> and </span>y</span></span>=<span>1/<span>3</span></span></span>
You might be interested in
a square pyramid has a height of 14 cm and a base side length of 7 cm. What is the volume of the pyramid. Show work
Brut [27]

Step-by-step explanation:

The volume of a pyramid or cone is:

V = ⅓ Ah

where A is the area of the base and h is the height.

The pyramid has a square base, so:

A = s²

A = (7 cm)²

A = 49 cm²

The height is 14 cm, so the volume is:

V = ⅓ (49 cm²) (14 cm)

V = 686/3 cm³

V ≈ 228.67 cm³

7 0
3 years ago
.02, 0.2, ___, 20, ___, __<br> What's the pattern?
Bingel [31]
You are multiplying by 10 each time so it is:
.02, 0.2, 2, 20, 200, 2000
7 0
4 years ago
Two rectangles are similar. The ratio of the length of rectangle A to the length of rectangle B is 1:4. If the length of rectang
snow_lady [41]

Answer:

Hey have you tried on your own to make sure you understand it?

Step-by-step explanation:

6 0
3 years ago
Last week you worked 20 hours, and earned $255.
Marrrta [24]

Answer:

Answer:$12.75

Answer:$12.75Step-by-step explanation:

The hourly pay rate is $12.75 because all you have to do is divide $255 from 20 and you get $12.75

6 0
3 years ago
Please help me with it is a project and I put 30+ points whoever can help me with this
Debora [2.8K]

Answer:

x=1

Step-by-step explanation:

Step 1: Subtract 2x from both sides.

Step 2: Add 6 to both sides.

Step 3: Divide both sides by 6.

Answer:

x=1

7 0
3 years ago
Other questions:
  • What did the scout say after fixing the littel old ladys bicycle horn?
    13·2 answers
  • Dose 8 has more factors or 9
    12·1 answer
  • In Triangle F G H, what is the measure of Angle H?
    14·2 answers
  • Find the following limit or state that it does not exist. ModifyingBelow lim With x right arrow minus 2 StartFraction 3 (2 x min
    15·1 answer
  • Please help I'm stuck on these 2 problems would help so much!!<br><br> Thanks!
    14·1 answer
  • Base ten numeral<br><br> What is Two and four hundred fifty eight thousandths?
    13·2 answers
  • Identify the slopes and y intercept?
    6·1 answer
  • Please help! Will mark brainliest!
    11·1 answer
  • If the equation yx = zx is true, when yx is positive, x /= 0, and z is
    12·1 answer
  • If f(1) = 5 and f(n) = 4f(n − 1) - 2 then find the value of f(5).​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!