Answer:
55 hours
Step-by-step explanation:
Write the problem as an equation.
4290-78x=0
Where 'x' is each hour the pond is being drained.
Then, solve.
4290=78x Add 78x to each side of the equation
55=x Divide both sides by 78
Answer:
t=
Step-by-step explanation:
q(t+3)=2-4t
qt+3q=2-4t
qt+4t=2-3q
t(q+4)=2-3q
t=
According to the rules of indices:
1/a^b=a^-b
thus using this rule, our value will be expressed as follows:
1/z^9=z^-9
Hence the answer is: z^-9
The formula is v=pi(r^2)(h)
pi(2^2)(4.2)
pi(16.8)
volume= 52.78m^2
Hope this helps :)