The fill pipe for a tank can fill the tank in 15 min and the drain pipe can empty the tank in 10 min. If both pipes are accident ally opened, how long will it take to empty the full tank?
1 answer:
Answer:
<em>30 min </em>
<em>
Step-by-step explanation:
The tank can be filled in 15 min, this means that in one min, 1/15 of the tank can be filled.
The tank can be emptied in 10 min, this means that in one min, 1/10 of the tank can be emptied.
the outflow rate - the inflow rate = rate of emptying the tank
1/10 - 1/15 = 1/x
where x is the time it will take to empty the tank
solving, we'll have
1/30 = 1/x
the reciprocal of the equation gives
x = <em>30 min </em>
You might be interested in
Answer: C) 9/41
Step-by-step explanation: From the description, angle S is the right angle. Which means that angles T and R are complementary (they sum to 90 degrees). Because they are complementary, this means the cosine of one angle is equal to the sine of the other angle. If cos(T) is 9/41, then so is sin(R).
cr. USA Test Prep
Answer:
B
Step-by-step explanation:
Isolate a
f = m × a
divide m from both sides
f/m = a
Answer:
=24
Step-by-step explanation:
Evaluate for x=2,y=−4
23+(−4)2
23+(−4)2
B jxkdjxjzjzkskslsmxndd she k
Answer: 50%
Step-by-step explanation:
hope this helps !
