Answer:
It will take 2.5 minutes to reach 27 gallon .
Step-by-step explanation:
He is filling it at a rate of 6 gallon per minute
suppose it takes x minutes to reach 27 gallon
water filled in x minutes =
water already present + volume of water at the rate of 6 in x minutes
12 gallons + 6 gallon . minute 8 x minutes
12 + 6x
This should be equal to atleast 27
12+ 6x = 27
let us subtract 12 from both sides
6x = 27-12
6x = 15
divide both sides by 6
x= 2.5
Answer
It will take 2.5 minutes to reach 27 gallon .
When He start to fill the water
6x - 12 = 2x + 36
4x = 48
x = 12
4y = 6y - 42
-2y = -42
y = 21
If the 3 points are collinear, then the slopes of all line segments connecting the points are the same.
Thus,
-6 - (-8) 2
m = ------------- = -------- = -1/2
-7 - (-3) -4
Then the following must be true:
4-(-6) 10
-1/2 = ------------ = ---------
c - (-7) c + 7
Cross multiplying, -(c+7) = 20, and c+7 = -20, so that c = -27
It will be a system of equations.
A=1*w
l=2w
Solve by substitution.