Answer:
the least value is in the vertex
at the point ( 2/3 , 14/3)
I think you meant 0.25x the number of minutes.
so...0.25x(mins)+0.75= Y (total cost)
8(7x-1)+4(x+5)
multiply; 8 x 7=
56x + -1 + 4x +5
reorder the terms;
-1 + 5 + 56x + 4x
Combine like terms; -1 + 5 = 4
4 + 56x + 4x
Combine like terms again; 56x + 4x = 60x
4 + 60x
Answer:
This isn't a real question... but i can explain what you gave. 12/14 is less than 1, so it is less than 9.
Answer:
x= 42
y= 23
Step-by-step explanation:
Set up a system of equations like this:
(4y-9)=(3x-43)
(2x+13)=(4y+5)
when two lines cross like this they form vertical angles, and vertical angles are always equal.
calculate the system of equations and you'll get x=42 and y=23
To find the measure of any of the angles just put x or y into the equation.