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
bagirrra123 [75]
2 years ago
8

-2x+5y=40 3x-2y= -5 Solve by using guassion elimination method

Mathematics
1 answer:
kolezko [41]2 years ago
6 0

solve simultaneously

Step-by-step explanation:

make one of the equations x subject of the formula and the other equation y subject of the formula

y=8+2/5x....1

x=-5/3 + 2/3y.....2

substitute equation 1 into equation 2

x=5

y=10

You might be interested in
Complete the solution of the equation. find the value of y when x equals 1. <br><br>9x +7y= -12​
Taya2010 [7]

Answer:

y=-3

Step-by-step explanation:

Given Equation:  

                            9x +7y=-12\\             y=?       at    x= 1

Putting the given value of 'x' in the equation:

                            9(1) +7y=-12\\\\9+7y=-12\\\\7y=-12-9\\\\7y=-21\\\\y=-\frac{21}{7} \\y=-3

At x=1, the value of y is y=-3

6 0
4 years ago
Select all the expressions that equal.. *see picture for problem* ​
kupik [55]

Answer:

Step-by-step explanation:

oknjbgfkdfrgn jnfbfl

7 0
3 years ago
Makayla is teaching Rodney how to construct a square inscribed in a circle.
Yuliya22 [10]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
I need help with this, it's due in 15 mins-
LiRa [457]

Answer:

Mean: 3.5263157894737

Median: 3

Mode: 3

Step-by-step explanation: The mode is 3 because the mode is for which number pops up the most, which is 3.

I got the median by crossing out 8 from the left and the right of the number set and got 3 as the last number.

I got the mean by adding up all the numbers and divided it by the amount of numbers in the set.

3 0
3 years ago
Deductive Reasoning is when we use all available facts and principles to reach a specific conclusion.
Troyanec [42]
Is true well i think it is 
6 0
3 years ago
Read 2 more answers
Other questions:
  • WILL GIVE A BRAINLIEST!! PLEASE HELP!!
    11·2 answers
  • How do you solve 1/3 of 4500
    11·1 answer
  • The data below shows the number of birds spotted by a bird watcher each hour over 10 hours:
    14·1 answer
  • What type of conic is given by the equation 4x^2+9y^2=36
    6·1 answer
  • Round 14.603 round to the nearest hundredth
    5·1 answer
  • Solve this k/3+4-2k=-9k
    8·1 answer
  • Write and solve an equation with the numbers 0 and 9. Then write an equation with the number 1 and 9 that has the same answer.
    6·1 answer
  • Determine the domain of the following graph:
    6·1 answer
  • 1.What is the solution to this system of linear equations?x + y = 4 x − y = 6
    7·1 answer
  • Help me plssssssssssss
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!