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Damm [24]
3 years ago
6

3 pumps, working 8 hours a day, can empty a tank in 2 days. how many hours a day must 4 pumps work to empty the tank in 1 day?

Mathematics
1 answer:
nexus9112 [7]3 years ago
4 0
It takes 3 pumps 16 hours to empty a tank
Meaning it takes 48 hours for one pump by its self
So if there are 4 pumps
48/4 it would take them 12 hours
They would need to work 12 hours to do it in 1 day
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F(x) = 3x + 5<br> Work out a if f(a)= -13
vekshin1

Answer:

a = - 6

Step-by-step explanation:

Given

f(x) = 3x + 5 , then

f(a) = 3a + 5 and f(a) = - 13 , then equating the right sides

3a + 5 = - 13 ( subtract 5 from both sides )

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a = - 6

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A right triangle has a hypotenuse length of 12, and one side length of 9. find the missing side length. do the side lengths form
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9^2+b^2=12^2

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M1= 5 , M2=1

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