OsamaAMS
OsamaAMS
24-03-2018
Mathematics
contestada
9x+10y=29
10x+9y=28
Solve by elimination
Respuesta :
edyg144
edyg144
24-03-2018
[tex](9x + 10y = 29)9[/tex]
[tex](10x + 9y = 28) - 10[/tex]
[tex]81x + 90y = 261[/tex]
[tex] - 100x - 90y = - 280[/tex]
[tex] - 19x = - 19[/tex]
[tex]x = 1[/tex]
[tex]9(1) + 10y = 29[/tex]
[tex]9 - 9 + 10y = 29 - 9[/tex]10y=20
y=2
Answer Link
VER TODAS LAS RESPUESTAS ( 66+ )
Otras preguntas
What is the equation for calculating the heat energy released during heating effect of electric current?
What Is Verbal Irony?
How do you have factor y=6x²+24x-192 and find the zeros?
how can I use quarrelling in a sentence?
the scale is 2 inches:4 feet ,find the scale factor
What Is Iambic Tetrameter?
what is a coastal body of water partially surrounded by land in which freshwater and saltwater mix
A man stands on a cliff that 10m above the sea. He throws a stone vertically upwards with velocity 5ms^-1. The stone eventually lands in the sea, if the air res
1. How many solutions are there for the equation? x2 + 16 = 8x (Points : 1) 2 1 0
What are all the perfect squares between 50 and 150?
