aneeqa01 aneeqa01
  • 24-02-2018
  • Mathematics
contestada

linear system word problem

linear system word problem class=

Respuesta :

helpmetnx helpmetnx
  • 24-02-2018
Good job, you got the equations! XD

I'll just help you solve

Multiply the 2nd row by 9
9x+9y=117
9x+27y=207

Subtract the 2nd row from the 1st row
−18y=−90
Divide both sides by −18
y=−90/−18
Two negatives make a positive
y=90/18​​
y = 5

Substitute 5 into an equation
9x+9(5)=117
9x+45=117
Subtract 45 from both sides
9x=117−45

9x=72
Divide both sides by 9
x = ___

Hope this will help​​


Answer Link

Otras preguntas

what philosophical position does the meditator find him or herself in?
Consider the series. Find the derivative of f(x) = 11x/(x² + 1)^(3/5).
3x-1 in stanteerd form
What is the consequence of cells not dividing to replace worn-out cells?
Lines 26 to 37 what are Mr. Frank's thoughts and feelings? how does the white glove affect Mr. Frank? what does this detail reveal about him?
Brandon Company, a U.S. corporation, sold inventory on credit to a British company on April 8, 2024.a. trueb. false
Mrs.perez collects data from 12 students to answer three different questions which data set has the most variability 1. How many minutes do students spend play
Rationalys the denominator and simplify 10/√2
What is caliche in soils
distance between 2,19pi/13 and 3.pi/3