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
Evgesh-ka [11]
2 years ago
5

Use this system of equations to answer the questions

Mathematics
2 answers:
poizon [28]2 years ago
7 0

Answer:

the first one is 2 the second one is 3

Step-by-step explanation:

Over [174]2 years ago
6 0

Answer:

1. To eliminate x-term, multiply the second by -2

2. To eliminate y-term, multiply the second by 3

Step-by-step explanation:

4x - 9y = 7 (1)

-2x + 3y = 4 (2)

1. To eliminate x-term, multiply the second by -2

-2x + 3y = 4 (2) × 2

-4x + 6y = 8 (3)

4x - 9y = 7 (1)

Add (3) and (1)

6y - 9y = 8 + 7

-3y = 15

y = 15/-3

y = -5

4x - 9y = 7 (1)

4x - 9(-5) = 7

4x + 45 = 7

4x = 7 - 45

4x = -38

x = -38/4

x = -9.5

4x - 9y = 7 (1)

-2x + 3y = 4 (2)

2. To eliminate y-term, multiply the second by 3

-2x + 3y = 4 (2) × 3

-6x + 9y = 12 (3)

4x - 9y = 7 (1)

-6x + 4x = 12 + 7

-2x = 19

x = 19/-2

x = -9.5

4x - 9y = 7 (1)

4(-9.5) - 9y = 7

-38 - 9y = 7

-38 - 7 = 9y

-45 = 9y

y = -45/9

y = -5

You might be interested in
What is the value of <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B64%7D%20" id="TexFormula1" title=" \sqrt{64} " alt=" \sq
sesenic [268]
8 as that means what two of the same number makes up , in this case 64. 8x8=64
7 0
3 years ago
Joshua payed $1.99 for a pack of gum that contains 5 pieces of gum.Joshua has 110 pieces of gum. How much money did he pay for a
IgorLugansk [536]
Joshua pays 43.78 because he buys 22 packs. I found this by 110/5 . Then I multiplied 1.99 by 22 and got the final answer $43.78
8 0
3 years ago
5<br> 2. Simplify<br> .<br> 5<br> O 57<br> O 5-1<br> o<br> 5<br> O<br> 57
pantera1 [17]

Answer:

79853709 with the exponent of 94

Step-by-step explanation:

8 0
3 years ago
Is (2, 3) a solution to this system of equations?<br> 2x + y = 7<br> 17x + 19y = 18<br> yes<br> no
netineya [11]

I think its not a correct solution of given equations.

4 0
3 years ago
Martin's class has 28 students in it 25 % of those students are homesick today. How many students are home sick
lisov135 [29]
7 students are home sick
7 0
2 years ago
Other questions:
  • Find the sum and choose the correct answer.2n 3 + 4n 2 - 7 and -n 3 + 8n - 9
    5·2 answers
  • After a really rotten year in 2008, a baseball team won 120% as many games in 2009, which was 84 games. How many games did they
    10·2 answers
  • What is 2268 divided by 63
    15·2 answers
  • What is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? (5 points) y = 4x − 2 y = 2x − 4 y = −3(
    11·2 answers
  • Consider the following hypothesis test: H 0: 20 H a: &lt; 20 A sample of 50 provided a sample mean of 19.4. The population stand
    15·1 answer
  • 13x – 51<br> 10x - 33<br> find bc
    15·1 answer
  • Two sides of a triangle have lengths 7 and 13.<br><br> The third side has a length that is
    13·1 answer
  • Marta's line of fit __ a line of best fit because her line __
    11·2 answers
  • What value of x makes this equation true 10x-6=3(x+½)​
    12·1 answer
  • What is the surface area of the cylinder with height 5 cm and radius 7 cm? Round your answer to the nearest thousandth.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!