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
dusya [7]
3 years ago
8

Can you use elimination to solve a system of linear equations with three equations

Mathematics
2 answers:
crimeas [40]3 years ago
7 0
You can use elimination to solve systems of equations with 3 equations. I know how to solve systems of equatons with 3 equations, but I use a different process, I don't know how to use the elimination method.
Volgvan3 years ago
5 0
Yes, you can use Cramer's Rule.
The procedure for 2 unknowns AND 3 unknowns can be found here:
http://www.1728.org/cramer.htm





You might be interested in
8. Let α, β, γ be the angles made by a vector u ∈ R 3 with positive x, y, z−axis respectively. Then, the numbers l = cos α, m =
alex41 [277]

Answer:

The answers are given in the attachment

Step-by-step explanation:

The detailed step by step calculations are shown in the attachment.

8 0
3 years ago
Help ASAP I’ll mark you as brainlister
Bas_tet [7]

Answer:

100°

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Kira owes Mark $5, and Mark owes Kira $7. Which of the following statements means the same thing?
S_A_V [24]

Answer:

They both owe each other

Step-by-step explanation:

7 0
2 years ago
5. Which expression is equivalent to x2 - 17 x - 60?
Leni [432]
15x-60
this is the answer
5 0
3 years ago
Write an inequality for x that would give this rectangle a perimeter of at least 300ft
Travka [436]

Answer:

The inequality for x is:

x\geq 142

Step-by-step explanation:

Given:

Width of rectangle = 3 ft

Height or length of rectangle = (x+5) ft

Perimeter is at least 300 ft

To write an inequality for x.

Solution:

Perimeter of a rectangle is given as:

⇒ 2l+2w

where l represents length of the rectangle and w represents the width of the rectangle.

Plugging in the given values in the formula, the perimeter can be given as:

⇒ 2(x+5)+2(3)

Using distribution:

⇒ 2x+10+6

Simplifying.

⇒ 2x+16

The perimeter is at lest 300 ft. So, the inequality can be given as:

⇒ 2x+16\geq 300

Solving for x

Subtracting both sides by 16.

⇒ 2x+16-16\geq 300-16

⇒ 2x\geq284

Dividing both sides by 2.

⇒ \frac{2x}{2}\geq \frac{284}{2}

⇒ x\geq 142   (Answer)

7 0
3 years ago
Other questions:
  • Which is equivalent 4 pencils for every 2 student
    8·2 answers
  • What is the actual answer to this<br> i dont need how to do it
    9·1 answer
  • Wichbis greater 1 7/12 or 1 5/8
    12·2 answers
  • Which property is illustrated by the following statement? 3+x=x+3
    14·1 answer
  • I need help with this problem
    5·2 answers
  • Two mechanics worked on a car. The first mechanic charged $45 per hour and the second charged $120 per hour. The mechanics worke
    10·1 answer
  • 4. Calculate the volume of material used in making 100 ft of 4-in. type M, copper tubing.
    8·1 answer
  • 8. What is the slope of the line that passes through (4, -15) and (2, -15)?
    12·2 answers
  • Determine the value of y, if x is –9.<br> y = |x|-7
    15·1 answer
  • What is the quotient? can someone please help.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!