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
seropon [69]
3 years ago
10

Solve the system of linear equations by elimination. x+4y=1 3x+5y=10

Mathematics
2 answers:
laiz [17]3 years ago
6 0

Answer:

x = 5 , y = -1

Step-by-step explanation:

Solve the following system:

{4 y + x = 1 | (equation 1)

5 y + 3 x = 10 | (equation 2)

Swap equation 1 with equation 2:

{3 x + 5 y = 10 | (equation 1)

x + 4 y = 1 | (equation 2)

Subtract 1/3 × (equation 1) from equation 2:

{3 x + 5 y = 10 | (equation 1)

0 x+(7 y)/3 = -7/3 | (equation 2)

Multiply equation 2 by 3/7:

{3 x + 5 y = 10 | (equation 1)

0 x+y = -1 | (equation 2)

Subtract 5 × (equation 2) from equation 1:

{3 x+0 y = 15 | (equation 1)

0 x+y = -1 | (equation 2)

Divide equation 1 by 3:

{x+0 y = 5 | (equation 1)

0 x+y = -1 | (equation 2)

Collect results:

Answer: {x = 5 , y = -1

Basile [38]3 years ago
6 0

Answer:\mathrm{Range\:of\:}\frac{10-x}{52x+5}:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)<-\frac{1}{52}\quad \mathrm{or}\quad \:f\left(x\right)>-\frac{1}{52}\:\\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:-\frac{1}{52}\right)\cup \left(-\frac{1}{52},\:\infty \:\right)\end{bmatrix}

Step-by-step explanation:\mathrm{Domain\:of\:}\:\frac{10-x}{52x+5}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x<-\frac{5}{52}\quad \mathrm{or}\quad \:x>-\frac{5}{52}\:\\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:-\frac{5}{52}\right)\cup \left(-\frac{5}{52},\:\infty \:\right)\end{bmatrix}

You might be interested in
The measure of one angle is 13 less than five times The measure of another angle. The sum of the measure of the two angles is 14
kodGreya [7K]

\huge\boxed{a=\frac{229}{2};\ \ b=\frac{51}{2}}

<em>In decimal form, a = 114.5; b = 25.5</em>

We will write this as a system of equations, where a and b are the two angles.

\left \{ {{a=5b-13} \atop {a+b=140}} \right

We will use substitution to solve this system. We know what a equals, so we plug that into the second equation.

5b-13+b=140

Combine the like terms.

6b-13=140

Add 13 on both sides.

6b=153

Divide both sides by 6.

b=\frac{153}{6}=\boxed{\frac{51}{2}}

Now just subtract that from 140.

a=140-\frac{51}{2}=\boxed{\frac{229}{2}}

7 0
3 years ago
Does 1/7 divided by what equals 14
Paul [167]
2*7=14 7/14=2 do yes
5 0
3 years ago
Two variable inequalities from their graphs<br> Find the inequality represented by the graph
ikadub [295]

Answer:

y ≤ -1/3x + 1

Step-by-step explanation:

The shading is below the line so it is y ≤ and then the slope is -1/3x because when you go down 1 and 3 units to the right, you get another point. And lastly, the y-intercept is 1.


I hope this helps

7 0
2 years ago
Read 2 more answers
Carly spend 10 hours a day working at her job what percentage of her day does she spend at work ?
AlladinOne [14]
10/24 x 100 = 41.66
Approximately 42% of her day
3 0
3 years ago
Read 2 more answers
Complete the square root... I NEED IT NOW PLEASE?!
pochemuha
I believe the answer is C




5 0
3 years ago
Other questions:
  • Geoffery went on a trip across South America. He took 1,750 US dollars (USD) with him. In Chile, he traded his money for Chilean
    8·2 answers
  • A car is traveling at a rate of 93 miles per hour. What is the car's rate in miles per minute? How many miles will the car trave
    6·1 answer
  • Which is bigger 1/10 or 5/12
    8·1 answer
  • How to know the derivative of a function by looking at the graphs?
    13·1 answer
  • Charles has a rectangular flower garden that is 5yd long and 12yd wide. One bag of fertilizer can comer 6 squares yard. How many
    9·2 answers
  • Gini has a small garden that is 234 yards in length and 1 yard and with she grows roses 1/2 of her garden how many square yards
    10·1 answer
  • Amanda just took out a loan for $950 at a 7.2% APR, compounded monthly, to
    12·1 answer
  • Find the slope of a line parallel to each given line
    5·1 answer
  • Is the following statement true or false?<br> The decimal equivalent of 9/4 is a repeating decimal.
    14·1 answer
  • If h:k = 2:5, x:y=3:4 and 2h+x:k+2y = 1:2, find the ratio h-x: k-y.​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!