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
blondinia [14]
2 years ago
14

If i eliminate x from 5x+3y=9 2x-4=40, what would the new two equations be?

Mathematics
1 answer:
viktelen [127]2 years ago
6 0

You cannot eliminate x and end up with two different equations.

5x+3y=9.. B

2x-4=40...A

Solve A for x.

2x - 4 = 40

2x = 40 + 4

2x = 44

x = 44/2

x = 22

The only thing I can think of doing is to plug 22 into B.

5(22) + 2y = 9

110 + 2y = 9...This leads to an answer for y.

No two NEW EQUATIONS is possible.

2y = 9 - 110

2y = -101

y = -101/2

Check your question again.

You might be interested in
Mario buys 2 pounds of hamburger and 1 pound of sausage. Sausage costs 10 cents more per pound than hamburger. If the total cost
Tasya [4]
Hamburger 1.80lbs sausage is 1.90lbs
1.80+ 1.80+ 1.90=$5.50
7 0
3 years ago
What number should be added to both sides of the equation to complete the square ? x2 + 12x = 11
Korvikt [17]
You can add a lot of numbers (or so I think). One number I think you can add is 31. 
3 0
2 years ago
Read 2 more answers
A company earns a profit of $100 the first month it is in business. Every month after that, the company earns a profit that is 1
Jobisdone [24]
Answer is $506.25.
first month is $100,
second month is 100 times 1.5 which is 150.
thirst month is 150 times 1.5 which is 225.
fourth month is 225 times 1.5 which is 337.5
fifth month is 337.5 times 1.5 which is 506.25
3 0
3 years ago
Here are two shapes with the same area. Work out the perimiter of the rectangle.
Lilit [14]
So, we know the perimeter is 24 cm. and the top part is the left part, (x) + 2, but remember, we need to have it be a number that, multiplied by 2, is 24. So, using this formula, the length, (top / bottom) is 7, and x = 5. Because 5 + 5 = 10, and when length is +2, it adds up to 14. 10 + 14 = 24. So, length is 7, width, (left, right) is 5.
3 0
3 years ago
Original price:$30; markdown:33%
Travka [436]
30 x 0.33 = 9.90 And that's the answer
3 0
3 years ago
Other questions:
  • What is 0.08 10 times as much
    13·1 answer
  • What is the distance between (8,-3) and (4,-7) ?​
    10·1 answer
  • Evaluate 6t - 20 - 32u when t = 1/4
    15·1 answer
  • Determining Key Aspects of a Quadratic Function
    5·1 answer
  • 30 points pls answer brainliest
    15·1 answer
  • What is the answer to 4 and 5?
    11·1 answer
  • WILL GIVE BRAINLIEST!!
    5·2 answers
  • Does 9+5a=2a+9 have a infinitely many solution?​
    15·1 answer
  • Which expression represents the area of the shaded rectangle?
    5·1 answer
  • Solve the Antiderivative.​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!