kyliemo2003
kyliemo2003 kyliemo2003
  • 01-02-2017
  • Mathematics
contestada

Solve the system of equations.

3x+5y=9
3x+2y=3

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 01-02-2017
eliminate
multiply 2nd equtaon by -1 and add to first

3x+5y=9
-3x-2y=-3 +
0x+3y=6

3y=6
divide by 3
y=2

sub back

3x+2y=3
3x+2(2)=3
3x+4=3
minus 4 both sides
3x=-1
divide by 3
x=-1/3

(x,y)
(-1/3,2)
Answer Link

Otras preguntas

A person standing 1.20 m from a portable speaker hears its sound at an intensity of 5.50 ✕ 10−3 W/m2. HINT (a) Find the corresponding decibel level. dB (b) Find
A sentence with the word INDIGENOUS
Which of the following inequalities matches the graph?[tex]x \leqslant 0[/tex][tex]x \geqslant 0[/tex][tex]y \leqslant 0[/tex][tex]y \geqslant 0[/tex]which one
which people formed part of the adoption of capitalism ​
How do you spell 3:10 in Spanish?
The random variables X and Y have the joint PMF pX,Y(x,y)={c⋅(x+y)2,0,if x∈{1,2,4} and y∈{1,3},otherwise. All answers in this problem should be numerical. Find
I seriously need help with this question!! I'm not kidding! Please help me!!
Cemex, the largest cement producer in Mexico: a) is an insignificant competitor outside its home market. b) has only expanded into Spanish-speaking markets. c)
A medium-sized pear provides about 102 Calories of energy. HINT (a) Convert 102 Cal to joules. J (b) Suppose that amount of energy is transformed into kinetic e
What was a result of rail standardization?