Answer:
y = - x - 11
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
to calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 10, - 7) and (x₂, y₂ ) = (- 5, - 9)
m = = - , hence
y = - x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (- 5, - 9 ), then
- 9 = 2 + c ⇒ c = - 9 - 2 = - 11
y = - x - 11 ← in slope-intercept form
Do those steps in reverse to figure out the number.
65.5 ÷ 2 = <span>32.75.
</span>32.75 - 18 = <span>14.75.
</span>
So the punch has 2 liters of ginger ale. 2 liters of ginger ale is 20 percent of the punch. The punch has 8 liters of cranberry juice, 2 liters of ginger ale.
P=2g + 80
P is punch, g is ginger ale
b) 8 liters
Answer:
5
Step-by-step explanation:
Hello,
if x = y then x-y = 0
and then 5 + 2(x-y) = 5 + 2*0 = 5 + 0 = 5
hope this helps