p3ok2hvdellyRodgy p3ok2hvdellyRodgy

18-09-2016
Mathematics

contestada

what is the value of y in the solution to the following system of equations? 2x y = −4 5x 3y = −6

Respuesta :

nobillionaireNobley nobillionaireNobley

18-09-2016

2x + y = -4 . . . (1)
5x + 3y = -6 . . (2)

From (1), y = 4 - 2x . . . (3)
Putting (3) into (2), gives
5x + 3(4 - 2x) = -6
5x + 12 - 6x = -6
-x = -6 - 12 = -18
x = 18

From (3), y = 4 - 2(18) = 4 - 36 = -32

Answer Link

Otras preguntas

what are the elements of the measurement system during manufacturing ketchup packs?

During a game of pool, a cue ball travels to the left with 70 N of force and collides with the four ball moving with a force of 50 N to the right. If you assign

Question Progress Homework Progress 24 / 63 Marks a) Work out the value of (15)*× (√3)? x b) Work out the value of (19) × (√30) ? x 1 14 豐 54%

A list of needed materials calls for one five-pound pack of deck screws. You have three leftover packs. Two of them are 1/4 full, and the third pack is 1/3 fu

Which of the following statements about nonverbal behaviors is true? Multiple Choice We think nonverbal behaviors are used for deceptive communication. We think

Answer this question please

Assignment details ← C School Links = Speech Essay Chapter 4-6-1 1. Login-WV Higher Education X www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBgdrvi

How Did the Reconstrcution amendments grant right to African Americans, and how did the southern sates try to limit those rights

How did America change over this period of Haymarket Square Riot 1886

I forgot how to do fragment sentences