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
Cloud [144]
3 years ago
9

Solve 3x – ly= 11 and -2x – 4y=-26 by elimination

Mathematics
1 answer:
Ede4ka [16]3 years ago
7 0

Answer:

(5, 4 )

Step-by-step explanation:

Given the 2 equations

3x - y = 11 → (1)

- 2x - 4y = - 26 → (2)

Multiplying (1) by - 4 and adding to (2) will eliminate the y- term

- 12x + 4y = - 44 → (3)

Add (2) and (3) term by term to eliminate y

- 14x + 0 = - 70

- 14x = - 70 ( divide both sides by - 14 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (1)

3(5) - y = 11

15 - y = 11 ( subtract 15 from both sides )

- y = - 4 ( multiply both sides by - 1 )

y = 4

solution is (5, 4 )

You might be interested in
What is 1/3 plus 1/2 in fraction form
Citrus2011 [14]

Answer:

5/6

Step-by-step explanation:

Hope this helped!!!

7 0
3 years ago
The figures below are similar, explain what you know about the sides.
dem82 [27]
That they are the exact same shape. Some of the sides will be longer and shorter than the other figure, but same shape.
8 0
3 years ago
Are these lines perpendicular?<br> yes<br> no
liberstina [14]

Answer:

no

Step-by-step explanation:

perpendicular means that they intersect at a 90° angle

4 0
2 years ago
You have 2 positive numbers. one number is 5 times the other number. the difference between the two numbers is 236, find the num
lisov135 [29]
Let the numbers be x and y
y=5x
y-x=236
5x-x=236
4x=236
x=59
5=5*59=295
6 0
3 years ago
Read 2 more answers
Arnie decides to make 3 cups of dark orange paint and 3 cups of light orange paint.
dimulka [17.4K]

The question is an illustration of equivalent ratios.

  • 3 cups of dark orange require 3 ounces of yellow  paint
  • 3 cups of light orange require 19.5 ounces of yellow paint

1 cup of dark orange requires

Red = 7oz

Yellow =1oz

To make 3 cups, we simply multiply by 3, because 3 \times 1 = 3

So, we have:

Red = 7oz \times 3 = 21oz

Yellow =1oz \times 3 = 3oz

2 cups of light orange require

Red =3oz

Yellow =13

To make 3 cups, we simply multiply by 1.5, because 2 \times 1.5 = 3

So, we have:

Red = 3oz \times 1.5 = 4.5oz

Yellow = 13oz \times 1.5 = 19.5oz

Hence:

  • 3 cups of dark orange require 3 ounces of yellow  paint
  • 3 cups of light orange require 19.5 ounces of yellow paint

Read more about equivalent ratios at:

brainly.com/question/18441891

5 0
3 years ago
Other questions:
  • How many degree black belts in tae kwon do are there?
    15·1 answer
  • Money is invested into an account earning 4.25% interest compounded annually. If the accumulated value after 18 years will be $2
    14·1 answer
  • 3x-11y=-1<br> 2x-5y=-3<br> x=<br> y=
    9·2 answers
  • Angle XYZ is bisected by line YW the measure of angle XYW is 52 what is the measurement of angle WYZ what is the measurement of
    9·1 answer
  • What is the measures of angle C
    6·2 answers
  • If 3 students averaged 68 on a test and 4 students averaged 75, what is the average of all 7 students
    7·2 answers
  • Find the missing side lengths of these triangles
    15·1 answer
  • F(x)=x^2 - 4x; find f (5)
    7·1 answer
  • Find a ⋅ b.<br><br> a = 9i + 5j, b = 4i + 3j
    5·2 answers
  • 9th grade alg 1<br><br> number 43 and work please!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!