Answer:
Infinitely many solutions.
Step-by-step explanation:
2 (n - 1) + 4n = 2 (3n - 1) Let's simplify this to solve it.
2n - 2 + 4n = 6n - 2 Distribute 2(n-1) and 2(3n-1)
2n + 4n - 2 = 6n - 2 Rearrange the left side of the equation.
6n - 2 = 6n - 2 Add 2n + 4n.
-6n -6n Subtract 6n from both sides.
-2 = -2
the answer is infinitely many solutions, meaning that n can be any real number.
The three remaining slices would form 108 degrees.
Hope this helped (and that I was right) =P
The fourth side = f, now let's solve for f
value of fourth side = f = 96 km
y = 2x + 7
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 ) = (0, 7 ) and (x₂, y₂ ) = (1, 9)
m = 
= 2
given the point (0, 7 ) then c = 7
y = 2x + 7 ← in slope-intercept form
Since the family spends ten minutes on average per shower and there is 2.5 gallons spent per minute, 25 gallons are used per shower and with 4 shows per day, 100 gallons are used per day, so in 30 days they use 3,000 gallons of water, since water costs $1.50 per 1000 gallons, showering only costs them $4.50 per month
