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
scoray [572]
2 years ago
15

X-7=11 , 2x+y=19 when using elimination

Mathematics
1 answer:
12345 [234]2 years ago
6 0
X+0=18
2x+y=19 

(-2)x+(-2)0=(-2)18
2x+y=19 

0+y= -17 
2x+ (-17)=19
2x=36

y=-17
x=18
You might be interested in
An energy bar company manufactures peanut butter and chocolate bars.
Ivenika [448]

Answer:

sold 120 chocolate bars

sold 140 peanut butter bars

Step-by-step explanation:

x = peanut butter bars

y = chocolate bars

x + y = 260, total lbs

0.25x + 0.30y = 71, money

solve double variable equation

multiply -4 on both sides for 2nd equation

-x + -1.2y = -284

add both equations together

-0.2y = -24

y = 120

x = 260 - 120

x = 140

sold 120 chocolate bars

sold 140 peanut butter bars

3 0
2 years ago
___________________________________________________________
attashe74 [19]

Answer:

A

Step-by-step explanation:

I think it is A because if you do the math when your double her time she has way more distance.

8 0
2 years ago
What is the median of the following string of values?<br> 55, 18, 58, 49, 8, 77, 62, 26, 7.11
LuckyWell [14K]

Answer:

The answer is 49 if we are to assume you meant 7.11 and not 7,11.

If you meant 7,11 - the answer is 28.5.

Step-by-step explanation:

If we are assuming you meant "7,11" and not "7.11", then we would start by removing the lowest and highest numbers from the list respectively, and repeating the process until you only have 1 or 2 numbers left.

Here are the pairs of numbers removed if we are assuming you meant 7.11;

7.11 / 77

8 / 62

18 / 58

26 / 55

We are left with 49, and that would be your median.

However, if we were to assume you meant 7,11, then we'd have to start over and repeat the process.

7 / 77

8 / 62

11 / 58

18 / 55

26 / 49 is our final answer; however we are not to assume this as we need a definite number. To resolve this, we would need to average the two numbers. To do this, we add them together and divide by how many numbers we added.

26 + 49 = 75.

75 / 2 = 28.5

Your median for this would be 28.5.

Hope this helps! Have a great rest of your day. :)

3 0
2 years ago
Read 2 more answers
Use exponents to write an expression for one billion
kykrilka [37]
The anser would be 500 with the exponet of 100 solve my multiplying
5 0
3 years ago
there are 500 tickets for sale in A raffle. tickets cost $3 each, or $20 for A book of 10. All 500 tickets were sold, and $1350
KATRIN_1 [288]

Answer:

67 books of tickets

Step-by-step explanation:

-To get this, you just divide 1,350 by 20, and you will get 67!

5 0
3 years ago
Read 2 more answers
Other questions:
  • If 5 burgers and 4 orders of fries cost $30.76 and 8 burgers and 6 orders of fries cost $48.28, what is the cost of a burger and
    7·1 answer
  • PLEASE HELP (I’LL GIVE 15 POINTS)
    13·1 answer
  • What is the distance between points A(7,3) and B(5,-1)
    5·1 answer
  • Factor the expression 100w^2x^2-64y^2z^2
    13·1 answer
  • Based on data from the Greater New York Blood Program, when blood donors are randomly selected the probability of the having Gro
    10·1 answer
  • Use the data set and the indicated number of classes to construct (a) an expanded frequency distribution, (b) a frequency histog
    8·1 answer
  • Solve equation -5(5b+7)=7b+29
    13·1 answer
  • Explore Three Dimensional Shapes: Investigation 4<br><br>I need help with the worksheet
    5·1 answer
  • May somebody help me please and thank you
    11·1 answer
  • A baseball is thrown straight up in the air with an initial velocity of 2 m/s. Draw a picture that shows the path of the ball as
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!