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
REY [17]
3 years ago
13

2x+5y=60 2x-5y=-20 Please show work!

Mathematics
1 answer:
sergejj [24]3 years ago
8 0
 (2x+5y=60)
- (2x-5y=-20)
-------------------
10y=80
y=8 


2x+5(8)=60
2x+40=60 
2x=20
x=10


You might be interested in
The table shows the number of windows and the number of panes of glass in the windows. Jim predicts
marshall27 [118]

Answer:

no his prediction is not correct. there would be 90 window panes

Step-by-step explanation:

12 panes in 2 windows so 1 window has 6 panes. multiply the 15 windows by 6 panes to get the total of 90 panes

12/2=6

6x15=90

7 0
3 years ago
Which of the following is most likely the next step in the series.
olga2289 [7]

Answer:

I think a is the answer of this question

5 0
3 years ago
C(x)=2x^2-400x+31,000
NemiM [27]
This is a quadratic so if you want to find the solutions, use the quadratic formula. Google quadratic formula and videos on it and how to use it will pop up.
7 0
3 years ago
I put more points, sorry
Murljashka [212]

Answer:

I dont understand. It isnt clear on what they want you to do.

3 0
3 years ago
What is one similarity and one difference between an altitude and a median of a triangle?
trasher [3.6K]
The median of the triangle is a segment that connects the vertex of the triangle to the midpoint of the side opposite to the vertex. <span>The altitude of the triangle is a segment that connects the vertex of the triangle to the side opposite to the triangle, which intersects that side at exactly 90°.</span>
3 0
3 years ago
Other questions:
  • Need help plzzzzzzzz
    8·1 answer
  • Figure A is a cylinder. Figure B is a cone. Figure C is a sphere. Figure D is at pyramid with rectangular base. Which statements
    10·2 answers
  • A safes unlocking code is composed of 6 letters or digits. find the number of codes that fit the given description
    15·1 answer
  • Which equation can be simplified to find the inverse y=x^2-7
    10·1 answer
  • The one-year survival rate for pancreatic cancer is 20%. Of 12 people diagnosed with pancreatic cancer at one hospital, 6 surviv
    10·1 answer
  • A class’s test scores are normally distributed if the average score 60 and the standard deviation is 7 choose the spots where th
    15·2 answers
  • the measures of two angles of a parallelogram are 120 and 40 find the other angles guys please answer urgent​
    14·1 answer
  • Can someone answer this?
    13·1 answer
  • (xy + 3x + 2)-(3x+y)<br> Pls help
    10·2 answers
  • Divide. Write your answer in simplest form. <br><br> 3/14 divided by 7/10???
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!