Answer:
4
Step-by-step explanation:
t = d/r
t = 280/70
t = 4 hours
Answer:
1.28 m
Step-by-step explanation:
The speed at which water rises in the tank is proportional to the speed of the water in the pipe and inversely proportional to the ratio of the tank area to the pipe area.
The ratio of tank area to pipe area is the square of the ratio of their diameters:
((150 cm)/(4 cm))² = 1406.25
Then the rate of rise of water in the tank is ...
(0.5 m/s)/(1406.25)
After 1 hour = 3600 seconds, the height of the water will be ...
rise = (time)(rate of rise)
(3600 s)(0.5 m/s)/1406.25 = 1.28 m
Answer:
17
Step-by-step explanation:
12 -6 divided by 3 is 2, so 15+2 is 17
Answer:
C
Step-by-step explanation:
Answer:
y = 8x + 7
Explanation:
The equation of the line in slope-intercept form has the following general formula:
y = mx + c
where:
m is the slope of the line = 8
c is the y-intercept = 7
Substitute with the givens in the above formula to get the slope of the line as follows:
y = mx + c
y = 8x + 7
Hope this helps :)
