Answer:
The solution of the given system is (2,0)
Step-by-step explanation:
Here, the given system of equations is:
x + y = 2 .............. (1)
........ (2)
Now from (1) x = 2 - y
Substitute this value of x = 2- y in (2) ,we get:

⇒ y = 0 or, y = -1
Now, if y = 0, x = 2
and if x= -1, y = 2-(-1) = 2+1 = 3, or y = 3
But (x = -1 , y = 3 )is NOT a solution of (2).
Hence, the solution of the given system is (2,0)
Answer:
$4.50 for French Roast
$7.60 for Columbian
Step-by-step explanation:
tried substitution and elimination method but got different answers to I graphed these equations and found the point of intersection
5/3x + 25/8y = 31.25
29/12x + 9/16y = 15.15
point of intersection (4.5, 7.6)
Answer:b
Step-by-step explanation:
Answer:
y = -6 + 1.2*x is the answer I would use, but see the note below.
Step-by-step explanation:
Let x = the number of minutes.
Let y = the temperature at any given time.
y = -6 + 1.2*x
This is the equation that you would use if you were calculating y with a calculator. If you are in a chemistry class it should be written as
y = - 6°C + 1.2°x/ min