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
ivann1987 [24]
3 years ago
5

Solve by Elimination 2x+5y=9 3x-5y=11

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0

Answer:

x = 4 , y = ⅕

Step-by-step explanation:

2x + 5y = 9 (1)

3x - 5y = 11 (2)

Add (1) and (2)

5x = 20

x = 4

Using (1), find y

2(4) + 5y = 9

5y = 1

y = ⅕

natulia [17]3 years ago
7 0
The systems of equations would be (4,1/5)

These equations can be solved much easier because they are already set up for you!

First you want to add both of the equations up and get it to where only one x or y value is available. So as you can see -5y and 5y cancel out and the leaves you with the added up equation as 5x=20. Next you want to isolate x by dividing by 5 on both sides to get x=4

Now that you have what x equals you want to plug it in one equation (or both if you really want to check if the answer is correct). Let’s use the first equation and plug 4 for x. 2(4)+5y=9 next simplify and you’ll get 8+5y=9 and now subtract 8 on both sides to get 5y by itself so you get 5y=1. Isolate y by dividing 5 on both sides and you’ll get y=1/5. Your systems of equations would equal (4,1/5).
You might be interested in
What's the answer????
lara [203]

Answer:

Graph B

This is because of the vertical line test. Say you were to draw a vertical line that stretches through the whole graph. If this line you draw passes through more than two points of the same line/function/whatever b is, it is not a function.

5 0
2 years ago
Suppose a triangle has sides a, b, and c, and let theta be opposite the side of length a. If cos theta < 0, what must be true
katrin2010 [14]
If \cos \theta\ \textless \ 0, then angle \theta is obtuse and triangle with sides a, b, c is obtuse triangle.
In an arbitrary triangle can be only one obtuse angle, and the side which lies opposite to the largest angle is the largest. Then since <span>angle \theta is opposite the side of length a</span>  you can conclude that a>c and a>b.



6 0
3 years ago
Becky and Don live 210 miles apart and plan to visit each other for a week. They decide to leave at the same time, drive toward
Anestetic [448]

If they don't stop 1 hour and a half.

90 miles away from Becky and 120 away from Don

4 0
3 years ago
Read 2 more answers
What is the value of r?<br> 3/5 ( r - 7 ) = 1
gulaghasi [49]
R = 26/ 3 im pretty sure
4 0
3 years ago
Read 2 more answers
Pls help I’ll brainlest ASAP
Burka [1]
So, and, but, but, or, nor, so. Im pretty sure this is correct.
5 0
3 years ago
Other questions:
  • suppose you earn $15 for each car you wash. Which function describes the relationship between your total earnings E and the numb
    6·2 answers
  • Wht is the sum of 3b/b+2and12
    8·1 answer
  • Find the product: 6,370 (86)
    12·1 answer
  • Math question down below
    7·1 answer
  • You're studying different function tools and begin working with this function: y=-200-6(x) Use the equation to answer the questi
    10·2 answers
  • The figure below shows segments KL and MN which intersect at point P. Segment KM is parallel to segment LN:
    5·2 answers
  • Solve this system of equations.
    11·2 answers
  • Evaluate the expression 50 - t when t equals 10, 20, or 25. Then
    12·2 answers
  • Pls help me!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • Pete will buy a computer priced at $564.20. He will use a coupon 15% off. What will be the sale price of the computer before tax
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!