Answer:
c
Step-by-step explanation:
How am i supposed to know? ask someone else
Answer:
Step-by-step explanation:
1). Let the equation of a line is,
y = mx + b
Here, m = slope of the line
b = y-intercept
From the graph attached,
Slope = =
y-intercept = -2
Equation → y =
2). Slope of the line =
y-intercept 'b' = -3
Equation → y =
3). Slope of the line =
=
y-intercept = 5
Equation → y =
4). Slope of the line =
y-intercept = 4
Equation → y =
5). Since, line is passing through origin (0, 0)
y-intercept = 0
Slope =
Equation → y = x
6). Slope of the line =
y-intercept = -4
Equation → y =
Answer: x=5
Step-by-step explanation:
Answer:
0.6 hours
Step-by-step explanation:
Let's say the swimming pool is 12,000 gallons.
The flow rate of the cold water pipe is:
12000 gal / 4 hr = 3000 gal/hr
The flow rate of the hot water pipe is:
12000 gal / 6 hr = 2000 gal/hr
If the cold water pipe is turned on for three hours, the volume of water is:
3000 gal/hr × 3 hr = 9000 gal
That leaves 3000 gallons. The time to fill the rest of the pool with both the cold and hot water pipes is:
3000 gal / (3000 gal/hr + 2000 gal/hr) = 0.6 hr
It takes 0.6 hours (36 minutes).