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

What is the area of this figure? Drag and drop the appropriate number into the box. A = 1159.5 in² 806.52268.54174.5 A shape made up of a rectangle with a le

How does the 8th amendment protect citizens?

Why did Austria shift alliances in the mid-1700s? A. Austria was afraid of Britain was an expanding power. B. Austria began to see Prussia as a greater thr

The table below shows the values of y for different values of x: x 5 7 9 10 11 12 13 y 3 0 −1 −6 3 8 −4 The correlation coefficient for the data is 0.0715. Whic

How long should one scene for a scripted play be?

Which term names the main components of proteins? A. fats B. amino acids C. sugars D. lipids PLEASE HELP! WORTH 15 POINTS!

10/3 / 1/6 (2.8 + 1.2)

Which type of multiplexing is defined by wavelength instead of frequency? a. wdm b. cwdm c. dwdm d. fdm?

Which type of broadband internet access involves using cellular data networks? ?

Why is 21/100 greater than 1/5