westalexandria
westalexandria westalexandria
  • 04-02-2017
  • Mathematics
contestada

What is the solution to the system of equations?

y = 1.5x – 4

y = –x

Respuesta :

mohsan573
mohsan573 mohsan573
  • 04-02-2017
Red line for y=1.5x-4 
and blue for y= -x

the solution is (1.6  , -1.6)
Ver imagen mohsan573
Answer Link
2018alexdavis 2018alexdavis
  • 04-02-2017
x=1.6, y=-1.6
using substitution,
(replace y in equation 1 with -x from equation 2)
-x=1.5x-4
(make all variables on the same side- subtract 1.5x)
-2.5x=-4
(divide by -2.5 to get x by itself)
x=1.6
(plug x into the second equation to solve for y)\
y=-1.6
Answer Link

Otras preguntas

117 km : cm A 217 B 2.170 C 2 l .700 D 217.000
Which was the first written criminal code?
Which of the following occurs with both a cold front and a mountain breeze? a. Warm air rises. b. Precipitation falls. c. Clouds tend to form. d. Air masses
Which of the following types of landforms can also be called a “depression” because it is naturally lower than its surroundings? a. a plateau b. a valley c. a m
In a state with a population of 3000000 people, the average citizen spends 6000 on housing each year
12. The square and rectangle shown below have the same perimeter length Show that the length of the rectangle (3x + 1) centimetres
The control group in an experimental study will __________.
two more than the product of -5 and a number x is 5...what is the number
is 9.42 a rational number
what was the spoils system