erinveri100 erinveri100
  • 02-02-2021
  • Mathematics
contestada

Solve the simultaneous equations
8x + 3y = 45
2x + 3y = 27

Respuesta :

kirabowen15
kirabowen15 kirabowen15
  • 02-02-2021

8x + 3y = 45 * -2
2x + 3y = 27 * 8

-16x - 6y = 90
16x + 24y = 216

24y = 216
y = 216/24
y = 9


8x + 3y = 45
8x + 3(9) = 45

8x + 27 = 45
8x = 45 - 27
8x = 18
x = 18/8
x = 2.25


Answer Link

Otras preguntas

How did the Dred Scott decision impact the Election of 1860?
What is the momentum of a 950 kg car moving at 10.0 m/s? (2 points)
how do i write this in slope intercept form ?
becca brownie recipe call for 3 3/4cup of flour.if becca wanted to make a batch that is 3/5 the the amount how many cups will she need
What is the rhyme scheme of this stanza? (Dont answer if you dont know) Read the passage: The boy stood on the burning deck Whence all but he had fled; The fl
The booster club sells meals at basketball games. Each meal comes with a choice of hamburgers, pizza, hot dogs , cheeseburgers or tacos and a choice of root bee
474/9 what is the answer
what level of gonvernment has the power to regulate slavery
What ideas are presented in the excerpt? Check all that apply.
what is 2 and 5/6 divided by 6 and 4/5