martinezbrooklynne2
martinezbrooklynne2 martinezbrooklynne2
  • 11-03-2021
  • Mathematics
contestada

THIS IS FOR MY TEST PLEASE HELP
solve this system by ELIMINATION. show ALL steps please.
3x+4y=24
x-8y= -20​

Respuesta :

40042
40042 40042
  • 11-03-2021
2(3x+4y) = 2(24)
6x+8y = 48
Add both the equations
6x + 8y = 48
+ x - 8y = -20
—————————
7x = 28
x = 28/7
x = 4

Plug in this value in the second equation

(4) - 8y = -20
-8y = -24
y = -24/-8
y = 3

Therefore:
x = 4
y = 3
Answer Link

Otras preguntas

A retail gasoline pump is able to fill a 14.0 gallon automobile tank in 1.50 minutes. What is the mass flow rate deliverd by the gasoline pump in lbm/min
i have 10 min help!!!Which choice shows an opinion that is well supported with evidence?Carletta Wilson brilliantly portrays Abraham Lincoln as a man who is gif
Which of the following is a rational function
Suppose we look at two distant galaxies: galaxy 1 is twice as far away as galaxy 2. In that case ________. Galaxy 2 must be twice as old as galaxy 1 we are seei
Hey so I need help on this one problem (please read the directions and follow the rules!) thank you
Please answer QUestion L
on wednesday the temperature at 5:00 am was -12 by 5:00 pm the temperature had increased by 17 degrees what was the temperature at 5:00 pm
Help ASAP 1-4 please
Dana's dog skippy wieghs 20.4 pounds.Her cat Bruiser weighs 0.75 times as much as skippy Does Bruiser weigh more or less than skippy?Explain how you know .How m
Might help me if so thank you