Ashleymackenzie2015 Ashleymackenzie2015

04-01-2016
Mathematics

contestada

How many solutions are there to the following system of equations?
5x 3y=7
2x-y=2

Respuesta :

Billymkhoi Billymkhoi

04-01-2016

5x + 3y = 7 (1)
2x - y = 2 (2)

Multiply (2) by 3:
6x - 3y = 6 (3)

Take (1) + (3):
(5x + 6x) + (3y-3y) = 7+6
⇒ 11x = 13
⇒ (11/11)*x= 13/11
⇒ x = 13/11.

y = 2*13/11 -2= 4/11

The final answer is x=13/11, y=4/11.

Answer Link

Otras preguntas

Ben growled at the man who parked too close to his car. He was always guarding his prized possession. Don’t get too close or he might bite! Which figure of spee

how does the biosphere rely on the other spheres for survival

All of the following are true statements about Abraham Lincoln early life EXCEPT which of the following? a. His mother died when he was only nine years old. b.

one way in which suleiman the magnificent and akbar the great are similar is that they both brought about periods of 1) political stability and religious toler

PLSSSSSSSSSSS HEEEEEELP????The mean of a set of normally distributed data is 600 with a standard deviation of 20. What percent of the data is between 580 and 6

Which of the selections below is not a type of analogy? a. field of vision b. object and class c. member and class d. degree of intensity

What is Another word of good .

In 1975 Cambodia invaded and conquered South Vietnam. a. True b. False

Who were the emigre? a. Nobles who fled France c. The soldiers of the National Guard b. Peasants who migrated outside of France looking for work d. 29 sympa

How does the diary fromat of this story help you understand the main characters thoughts and feelings